13 best desktop atomic clocks

Desktop atomic clocks are specialized timekeeping devices designed to provide highly accurate and reliable time information. They are typically used in homes, offices, and other settings where precise timekeeping is essential. Here's what you should know about desktop atomic clocks:

  1. Atomic Clock Technology: Desktop atomic clocks are equipped with atomic clock technology, which relies on the vibrations of atoms (usually cesium or rubidium) to measure time with exceptional accuracy. Atomic clocks are considered some of the most precise timekeeping devices in the world.

  2. Accuracy: These clocks are renowned for their precision and are capable of maintaining accuracy to within a few billionths of a second per day. They automatically adjust for variations in time caused by factors like Earth's rotation, making them incredibly reliable.

  3. Radio-Controlled or Atomic Sync: Most desktop atomic clocks are radio-controlled, meaning they receive time signals from atomic clocks maintained by national timekeeping organizations (e.g., NIST in the United States or NPL in the UK). These signals synchronize the clock's time with Coordinated Universal Time (UTC).

  4. Digital Display: Desktop atomic clocks typically feature a digital display that shows the time, date, and often additional information such as temperature and humidity.The display is easy to read and can be configured in various formats.

  5. Automatic Adjustments: One of the primary advantages of atomic clocks is their ability to automatically adjust for Daylight Saving Time (DST) changes and leap seconds, ensuring that they always display the correct time.

  6. Battery or Electric-Powered: Desktop atomic clocks can be powered by batteries or plugged into an electrical outlet. Battery-powered models are convenient for placement anywhere in the home or office.

  7. Additional Features: Some desktop atomic clocks may include additional features like alarms, countdown timers, and world time zones, making them versatile timekeeping tools.

  8. Aesthetic Design: These clocks come in a variety of styles and designs to suit different home decor preferences. They can range from sleek and modern to classic and traditional.

  9. Placement: Desktop atomic clocks are designed to sit on flat surfaces such as desks, shelves, or mantels. They are portable and do not require wall mounting.

  10. Maintenance: Atomic clocks are generally low-maintenance, requiring periodic battery replacement if they are not electric-powered. They should be placed away from electronic devices that may interfere with the radio signal reception.

Desktop atomic clocks are an excellent choice for individuals who require precise timekeeping for personal or professional reasons. They ensure that you always have access to accurate time information, making them valuable additions to any home or office environment.

Below you can find our editor's choice of the best desktop atomic clocks on the market
  

Sharp Atomic Desktop Clock – Auto Set Digital Alarm Clock - Atomic Accuracy - Easy to Read Screen with Time/Date/Temperature Display- Perfect for Nightstand or Desk

Sharp

Based on 1 reviews Check latest price
  • Atomic Alarm Clock - The Atomic Clock has a built in receiver that automatically synchronizes itself with the WWVB radio broadcast by the US Government’s National Institute of Standards and Technology (NIST) in Fort Collins, Colorado. The Atomic Clock will always be accurate to within on second as it receives daily WWVB updates.
  • Wall Mountable and Table Top Use - The clock may be hung on the wall using the hang hole at the back of the clock or displayed on your nightstand by pulling out the backstand. 3 x AAA batteries Needed (not included)
  • Calendar and Day of Week Display - Always know what day of the week it is with a quick glance. The clock displays the calendar and the day of the week.
  • Indoor Temperature Display - Get the real time indoor temperature of your room displayed on your clock.
  • Backlight on Demand - Press the snooze button on top of the clock to illuminate the whole display for 5 seconds. The backlight will also illuminate when the alarm sounds.

User questions & answers

Question: Is it DST
Answer: This clock has DST
Question: Is the clock able to display seconds
Answer: I bought this clock for my Mother in a Nursing Home. She said there is no place for seconds or a timer. But it is a great clock for her...time + day of the week, am, pm, temperature.
Question: can beep be turned off after pressing bar for backlight and time during night
Answer: If you're asking "can the snooze/backlight bar turn off the alarm", the answer is no. If you're asking if there is a way to turn off the beep noise it makes when you hit the backlight bar at 3 AM and don't want to wake up your partner with the noise, the answer is also no.
Question: how do you set the day? already set est, date and time. does day set itself automatically after certain time element
Answer: You can manually set the clock or only set the time zone and DST and wait for the clock to sync with the atomic clock and set itself.

Product features

Easy to Read - Easy to Use - Atomic Accuracy

The Sharp Atomic Desktop & Wall Clock has a built in receiver that automatically synchronizes itself with the WWVB radio broadcast by the US Government ‘s National Institute of Standards and Technology (NIST) in Fort Collins, Colorado. The Sharp Atomic Clock will always be accurate to within one second as it receives daily WWVB updates.

Never Needs Setting - Indoor Temperature Readings & Calander

- The Sharp Atomic Wall Clock has a built in receiver that automatically synchronizes itself with the WWVB radio broadcast by the US Government ‘s National Institute of Standards and Technology (NIST) in Fort Collins, Colorado. The Sharp Atomic Clock will always be accurate to within one second as it receives daily WWVB updates.

- Indoor Temperature sensor is located in the Atomic clock unit itself, and gives the ambiant temperature of the room.

- · Calendar and Day of Week Display - Always know what day of the week it is with a quick glance. The clock displays the calendar and the day of the week.

Easy to Read - Desktop or Wall Mount - Battery Operated

- Month, Date and Day are clearly shown and are updated automatically by the WWVB radio broadcast by the US Government ‘s National Institute of Standards and Technology (NIST) in Fort Collins, Colorado.

- The Sharp Atomic Clock (Model - SPC963) can be easily mounted to the wall or can be used on table top or desk with the built in stand.

- No cords! The clock runs off of battery power and can be used almost anywhere. The Main Display unit uses 3 x AA batteries(not included)

Sharp (SPC963) - East to Read Blue Backlit on Demand

Backlight on Demand - Press the snooze button on top of the clock to illuminate the whole display for 5 seconds. The backlight will also illuminate when the alarm sounds.

Use as Alarm Clock or Desk Clock

The easy to read clock can be used on a table or desk and can be seen from across the room. The indoor temperature is shown below the time, along with the Day, Month, and Date - and NEVER NEEDS SETTING for easy use.

Smaller Size Wall mount Clock for Smaller Spaces

The clock measures 5" x 6.45" and is the prefect size for when wall space is at a minimum. Battery operated, so it will fit anywhere!

SHARP - A Name You Can Trust.

Sharp has been making quality alarm clocks for over 25 years and is the largest suppler of Retail Alarm Clocks in the United States with over 61,000,000 sold. Millions trust us with helping them start their day and staying on track.

La Crosse Technology 513-1417CH-INT Atomic Digital Clock with Temperature and Moon Phase

Alkaline battery dated at least 7 years in advance (super, ultra, max, heavy duty and rechargeable types should be avoided). Place them back into the remote sensor; making sure they are installed according to the diagrams in the battery compartment.
Next, taking care not to press any buttons, reinstall the batteries in the display according to the diagram in the battery compartment.

Do not press any buttons for at least 15 minutes after installing the batteries. (Let them establish a good connection.)

The temperature should be showing on your display. You can now put your sensor back outside. see less Following is a basic restart procedure for clocks and weather stations that do not have wind or rain:



Bring both units inside and have the units 3-5 feet apart with nothing between them.

Remove all power from both units.

Press one of the buttons on the display at least 20 times to clear all memory. Verify that the display is blank before proceeding.

Let all the units sit with batteries out for 10 minutes.

Be sure to use a new, Brand Name Alkaline battery dated at least 7 years in advance (super, ultra, max, heavy duty and rechargeable types should be avoided). Place them back into the remote sensor; making sure they are installed according to the diagrams in the battery compartment.

Next, taking care not to press any buttons, reinstall the batteries in the display according to the diagram in the battery compartment.

Do not press any buttons for at least 15 minutes after installing the batteries. (Let them establish a good connection.)

The temperature should be showing on your display. You can now put your sensor back outside.


By Theresa L. Brezden on December 15, 2020

Failed to get questions.
See more answered questions (19)

Customer reviews

4.6 out of 5 stars
4.6 out of 5
739 global ratings

Based on 739 reviews Check latest price

Product description

Stylish atomic digital clock is packed with many features and offers modern look to add to your living room or kitchen. Outdoor temperature display receives wireless data from weather-resistant transmitting sensor within a 300 ft (91 m) range, down to -40 F. Large, 2 inch tall time digits set automatically to your time zone selection and adjust to daylight savings, all on an easy to read LCD with calendar display & moon phase. Clock indicates active alarm, WWVB signal, and low/weak battery with adjustable display language. Mount clock onto wall or fold-out leg stand to place on table.

  • Indoor/outdoor temperature (F/C)
  • Atomic time and date (manual set option) withautomatic updates for Daylight Saving Time (on/off option)
  • Moon phase icons
  • 12 Hour time display with 7 time zone settings (ATL to HAT)
  • Large 2.125 inch time digits for easy reading

User questions & answers

5 star
Question: I had to replace batteries in my similar lacrosse clock a few weeks ago. now the display is blank. what's wrong
Answer: Following is a basic restart procedure for clocks and weather stations that do not have wind or rain: Bring both units inside and have the units 3-5 feet apart with nothing between them. Remove all power from both units. Press one of the buttons on the display at least 20 times to clear all memory. Verify that the display is blank before proceeding. Let all the units sit with batteries out for 10 minutes. Be sure to use a new, Brand Name Alkaline battery dated at least 7 years in advance (super, ultra, max, heavy duty and rechargeable types should be avoided). Place them back into the remote sensor; making sure they are installed according to the diagrams in the battery compartment. Next, taking care not to press any buttons, reinstall the batteries in the display according to the diagram in the battery compartment. Do not press any buttons for at least 15 minutes after installing the batteries. (Let them establish a good connection.) The temperature should be showing on your display. You can now put your sensor back outside.
Question: Can this clock b only running on batteries
Answer: The unit runs only on batteries. The clock uses two AA batteries and the outside sensor also uses two AA batteries. I’ve only had my clock a couple of months, but similar clocks I have owned usually run a year or more on a set of batteries.
Question: Do these LaCrosse atomic clocks have a light
Answer: No but I have always been able to see the display in even low light situations
Question: How accurate are the moon phases, that's my main concern
Answer: Works for me. Accurate as how? It shows the phases of the moon that are in sync. Full, 3/4, 1/2, 1/4, 1/8. Accurate enough. I can compare by looking out at night and seems to be correct.

Product features

Large Digital Time

  • Atomic time and date (manual set option)
  • Automatically updates for Daylight Saving Time (On/Off option)
  • Large 2.125” time digits for easy reading
  • 12 Hour time display with 7 time zone settings (ATL to HAT)
  • Crescendo alarm with 10 minute snooze
  • Calendar: month, date, full weekday
  • 12 Moon phase icons

Wireless Transmission with Long Range

  • Indoor/outdoor temperature (F/C) with Hi/Lo recorded values (resets at midnight daily)
  • Temperature trends
  • Wireless transmit from over 330 ft range (obstructions, such as: walls, glass and resistance, such as: trees, bushes can reduce range)
  • Weather resistance to light moisture, but not direct rainfall and heavy precipitation
  • Proper sensor location: North wall in protected area from direct sunlight and precipitation, but well-ventilated for accuracy
  • Indoor Temperature Range: 32 F to 122 F (0 C to 50 C)
  • Outdoor Temperature Range: -40 F to 140 F (-40 C to 60 C)
  • Transmission Range: Over 330 Ft (100m)
  • Sensor requires 2 AA batteries (not included) (measures 1.57"L x 0.79"W x 5.12"H)

Easy Access (top buttons) and Operation

  • Displays Weekday in English or Spanish
  • Indicates Atomic signal, low/weak battery, and outdoor sensor signal strength
  • Wall hanging or free standing
  • Clock: 2 AA alkaline batteries (not included)
  • Measures 11.10"L x 1.14"W x 6.75"H - LCD: 6.60"L x 2.40"W (2" H time)

Customer reviews

4.6 out of 5 stars
4.6 out of 5
739 global ratings
" }, "aggregateRating": { "@type": "AggregateRating", "ratingValue": "4.6", "reviewCount": "250" }, "offers": { "@type": "Offer", "url": "https://www.amazon.com/dp/B07PY9534K?tag=bfyall-20&linkCode=osi&th=1&psc=1", "priceCurrency": "USD", "price": "32.86", "priceValidUntil": "2023-07-01", "itemCondition": "http://schema.org/NewCondition", "availability": "https://schema.org/InStock", "seller": { "@type": "Organization", "name": " Alkaline battery dated at least 7 years in advance (super, ultra, max, heavy duty and rechargeable types should be avoided). Place them back into the remote sensor; making sure they are installed according to the diagrams in the battery compartment.
Next, taking care not to press any buttons, reinstall the batteries in the display according to the diagram in the battery compartment.

Do not press any buttons for at least 15 minutes after installing the batteries. (Let them establish a good connection.)

The temperature should be showing on your display. You can now put your sensor back outside. see less Following is a basic restart procedure for clocks and weather stations that do not have wind or rain:



Bring both units inside and have the units 3-5 feet apart with nothing between them.

Remove all power from both units.

Press one of the buttons on the display at least 20 times to clear all memory. Verify that the display is blank before proceeding.

Let all the units sit with batteries out for 10 minutes.

Be sure to use a new, Brand Name Alkaline battery dated at least 7 years in advance (super, ultra, max, heavy duty and rechargeable types should be avoided). Place them back into the remote sensor; making sure they are installed according to the diagrams in the battery compartment.

Next, taking care not to press any buttons, reinstall the batteries in the display according to the diagram in the battery compartment.

Do not press any buttons for at least 15 minutes after installing the batteries. (Let them establish a good connection.)

The temperature should be showing on your display. You can now put your sensor back outside.


By Theresa L. Brezden on December 15, 2020
Failed to get questions.
See more answered questions (19)

Customer reviews

4.6 out of 5 stars
4.6 out of 5
739 global ratings
5 star
" } } }

DreamSky Auto Set Digital Alarm Clock with USB Charging Port, 6.6 Inch Large Screen with Time/Date/Temperature Display, Full Range Brightness Dimmer, Auto DST Setting, Snooze, Backup Batteries,12/24Hr

DreamSky

Based on 5 reviews Check latest price
  • Large Display with Full Range Dimmer: 6.6“ Large LCD screen with nice eye care number display. Time, date and temperature display. Almost full range brightness settable (6 levels + auto dim ), you can easily change to have the view bright or dim it to extremely low.
  • Advance autoset time : The alarm clock will set itself to right time, date and temperature immediately once plugged in. The long lasting button cell backup battery (installed ) will holds all settings and ensure the time always be accurate in case of main power interrupted. What you need to do is set your time zone and wake up time. Simple as that. Even miss the right time, you are still able to set it manually.
  • Auto DST and selectable time zone : Automatically adjusts to Daylight Savings Time while set the DST on .Seven USA time zone (EST/ CST/ MST/ PST/AST/HAT/AKT) and one newfoundland time zone NST selectable for your location.
  • Ascending beeping alarm with snooze: Ascending alarm sound wake you up naturally . Additional snooze to counter oversleeping, simply press the snooze button once and go back to sleep. 8 minutes later the alarm will ring again .
  • Plug in clock with USB charging port: Powered by USB port by plug in outlet. Extra USB charging port for charging cellphone and other electronic device. 3*AA batteries( not included) as backup, which will store the setting and keep the time works in case of main power outage.

User questions & answers

5 star
Question: Is it possible to turn off the DST option
Answer: Yes, the DST can be turned off.
Question: What is the small cord with tiny end on backside of clock
Answer: The clock is electric, it is a USB cord that goes into a plug that goes into the outlet.
Question: What is the warrranty information
Answer: Seller warranty: One year free replacement.
Question: Is the time supposed to set automatically
Answer: No. What they call auto time set is that they set the time at the factory. This clock will NOT autoset to the atomic clock signal broadcast from Fort Collins, Colorado.

La Crosse Technology 617-1485B Atomic Color Alarm Clock with USB Charging Port

La Crosse Technology

Based on 759 reviews Check latest price

Product description

Bedside alarm with loaded features including bright multi-color LED with large time digits and brightness control. View current room temperature (F/C) & humidity and their trends. Featured icons include moon phase, web connection, and low/weak battery indicator. AC adapter included for USB charging port to refill battery power in smartphone or other Mobile device. TROUBLESHOOTING STEPS: 1. Insert the 5.0 volt power cord into an outlet, then into your clock. Optional: Install 2-AAA batteries into your clock. 2. Use settings menu to program your clock. The backlight is adjustable - ADJUSTABLE BACKLIGHT • Power Cord: Press LIGHT HI-LOW-OFF button to adjust backlight. • Batteries only: (please ensure using batteries dated 2026 or newer) Press the LIGHT HI-LOW-OFF button for a 10 second backlight. Also, if to Manual WWVB Atomic Time Search • Hold the - button to start or stop a WWVB signal search. • WWVB Icon will flash when searching. ATOMIC SIGNAL SEARCH: The LCD backlight and USB charging port will momentarily turn off while the station searches for the atomic signal. The alarm clock will start searching at UTC 7:00, 8:00, 9:00, 10:00, 11:00.; If there is no WWVB reception, the alarm clock will search the WWVB time signal every 2 hours until the WWVB time is received. After reception, this alarm clock will only search for the atomic signal after midnight.

  • Atomic self-setting time and date with automatic Daylight saving time reset
  • USB charging port for mobile devices (charge cable not included)
  • Indoor temperature & humidity with trend arrows
  • Adjustable backlight settings
  • Moon phase icons

User questions & answers

Question: What type of battery for back up
Answer: Two AAA batteries for back up. It says to use Alkaline batteries
Question: Does this do military time
Answer: Yes, it can show 12- and 24-hour time. I have mine set on the latter. There are instructions in the manual for how to switch it.
Question: Can the user change the colors of the display, or choose to display all information in a single color
Answer: No. It has a multi color display. It also features the backlight dimmer that has high, low or off.
Question: can you turn off the display for sleeping
Answer: Yes there is large button on top part of clock that can adjust display ' brightness from very bright to off

Product features

La Crosse Technology Color LED Alarm Clock with USB charging port, Black
Electrical or battery operation

Continuous illuminated backlight with adjustable intensity settings (HI/Low/off) when operating on AC power.

On-demand backlight illuminates for 10 seconds when operating only on battery power (not included, required 2 new AAA alkaline brand).

Table or desktop use.

Included 5V A/C adapter or, battery operation requires 2 AAA alkaline batteries (not included).

Easy Accessible buttons (top of clock)

1) Hold Set button to begin.

2) Adjust values by using + or - buttons.

3) Press Set button to confirm values and continue in set up process.

Select from Fahrenheit (default) to Celsius temperature readings by pressing & releasing the F/C button.

Activate time alarm by pressing Alarm button to enter mode (AL will replace the seconds on display) Press Alarm again activates the alarm by displaying a bell icon between the Hour/Minutes.

Atomic time & date auto sets.

12/24 hr. time & 10 minute snooze alarm.

7 time zones: AST, EST, CST, MST, PST, AKT & HAT.

Calendar: month, day, date.

Indoor temperature (F/C) and humidity (%RH).

USB Charging port (charge cable not included)

Connect an external device's USB charging cable (not included) to the side of the alarm clock's USB port.

MAXimum current is 1AMP (charge those devices that are self-regulating).

Temperature Range: 32 F to 122 F (0 C to 50 C).

Humidity Range: 10% to 99% RH.

Digital Alarm Clock, with Wooden Electronic LED Time Display, 3 Alarm Settings, Humidity & Temperature Detect, Wood Made Electric Clocks for Bedroom, Bedside, Black

JALL

Based on 27 reviews Check latest price
  • 【Dual plus Alarm Setting】- Updated in 2019 from dual alarms to three alarms. You can either set two or three alarms to better WAKE you up. One for you and the other for your families. Forever Say no to delay. Also, it allows you to set weekday mode, which will ring only on Monday to Friday
  • 【Stylish Wooden Design for Decor】- This must be the most delicate alarm clock you’ve ever seen. It’s not only a clock, but also a great decoration for your bedroom. Stylish appearance and multiple functions make it suitable as a gifts for kids
  • 【Multiple Brightness Level Adjustable】- Allows you to adjust from low to high brightness, or even turn off the LED light and keep it sound sensitive. It’s user friendly at night, which won’t be too harsh for your eyes.
  • 【Temperature and Humidity Detect】- with temperature and humidity sensor, it can monitor the indoor temperature and humidity. Just like a companion to protect your health.
  • 【Power Cord Operated】- This clock is operated by USB to barrel power cord. ***NOT Batteries operated***

User questions & answers

Question: If the power goes out, will it switch to battery power as a back-up (if i keep batteries installed while leaving the usb plugged in
Answer: Yes, it will. The battery can be a back-up power source to work.
Question: Does it have to be plugged in or can it work with only batteries
Answer: To maintain a stable power source. We recommend to be plugged in. If you use it only with batteries. It won't work for a long time. You may have to change batteries very often. Since the LED light consumes batteries really fast.
Question: Why my clock doesn't turn on until I touch it? Is it defective
Answer: I have the same problem. The clock worked fine for about 2 months. Then the display went off. Reconnect the power cord would light up the display. But it went off in 20 sec. It comes back when I touch it, but will go off again in 20 sec. Following the Common Trouble Shooting Q&A, double press the "Down" button does NOT fix the problem. Reaching out to their support to figure out why.
Question: Where can i find an instruction for the product? i have lost mine. i forget how to set am/pm
Answer: You can download the instruction here. https://images-na.ssl-images-amazon.com/images/I/A10i896yVSL.pdf Also, we have a video clips for guildance: https://www.youtube.com/watch?v=-7MNCBNNwBU Any further questions, please contact us directly. We provide 7/24 online service and 1-year warranty

Product features

3 Alarm Setting

It provides 3 alarm settings. You can set 3 different time on the same day. For example, if your wife and you wake up at different time, it’s certainly a good choice for you. What’s more, it can also be as a medicine reminder for the ages. There’s an extra mode “oN:E” or “--:E” to decide whether it rings on weekend or not.

Multiple Level Brightness Adjustment

It provides multiple levels of brightness adjustment. It’s better to lower the brightness at night so that it won’t be too sharp for your eyes.

La Crosse Technology 617-1270 Atomic LCD Alarm Clock, Black

La Crosse Technology

Based on 58 reviews Check latest price

Product description

La Crosse Technology atomic alarm clock provides you with accurate atomic time and precise real-time temperature data for your location. This blue backlight LED digital clock includes an atomic calendar, indoor temperature and a dynamic moon phase tracker.

  • Indoor temperature (°F/°C), Moon Phase Icon
  • 12/24 hr. atomic time (optional manual setting)
  • Time alarm with snooze option, Calendar: day, month, date
  • Time zone selectable (M, P, C, E), Bright blue LED backlight, Atomic signal reception icon
  • 2 "AAA" Alkaline batteries (not included)
  • Dimensions: 4.76" L x .835" W x 3.12" H

User questions & answers

Question: Can anyone tell me how loud the alarm is, on this clock? I'm a heavy sleeper and need a good, volume, alarm
Answer: The alarm calls your attention while being awake it is not a good alarm clock.

Sharp Atomic Desktop Clock with Color Display - Atomic Accuracy - Easy to Read Screen with Calendar & Day of Week Time/Date Display - Auto Set Digital Dual Alarm Clock - Perfect for Nightstand or Desk

Sharp

Based on 955 reviews Check latest price
  • COLOR ATOMIC DUAL ALARM CLOCK - Accurate to the Second! The Atomic Clock has a built in receiver that automatically synchronizes itself with the WWVB radio broadcast by the US Government’s National Institute of Standards and Technology (NIST) in Fort Collins, Colorado. The Atomic Clock will always be accurate to within on second as it receives daily WWVB updates.
  • COLOR CALENDAR & DAY OF WEEK DISPLAY - Always know what day of the week it is with a quick glance. The clock displays the calendar and the day of the week. Using the Snooze/Dimmer switch on top of the display, you can easily adjust the display brightness to your liking.
  • EASY TO SET DUAL ALARM - Set alarm for two people, or set one alarm for weekdays and the other for weekend!. Snooze/Dimmer Switch is simple to use and on top of the display.
  • "NO WORRY" BATTERY BACK-UP - There is a "No Worry" battery back-up option (requires 2 x AAA battery, sold separately), that will allow the alarm to go off, even if the power goes out. The battery back-up stores the time and alarm settings if the power is interrupted. During battery back-up the clock’s display will not be lit. Once power is restored, the display will re-light.
  • VARIABLE BACKLIGHT ON DEMAND - Press the snooze button on top of the clock to activate the 3-Step Dimmer Control, illuminating the whole display for 5 seconds. The backlight will also illuminate when the alarm sounds.

User questions & answers

Question: How do you increase the sound of the alarm
Answer: There is no volume control, if you feel something is wrong with the clock's alarm please reach out to customer service at custserv_clocks@mzb.com for warranty information.
Question: How do I change the time to regular time vs military time? When I set the clock it did not have the “pm” setting
Answer: Toggle 12 and 24 hour time by pressing the "12/24 WAVE" button.
Question: can this be placed anywhere or does it have to be in a window
Answer: This clock does not have to be near a window at all times but this does help during initial set up for connection to the atomic signal.
Question: Is this clock primarily to be used via standard AC power? I note that it has optional (?) battery backup
Answer: This clock is electric operated; the battery backup does not power the clock. The battery backup is used for storing the time and alarm settings if the power is interrupted. During battery backup the clock’s display will not be lit. Once the power is restored the display will re-light.

Product features

Easy to Read Color Display - Easy to Use - Atomic Accuracy

Color Calendar and Day of Week Display - Always know what day of the week it is with a quick glance. The clock displays the calendar and the day of the week. Using the Snooze/Dimmer switch on top of the display, you can easily adjust the display brightness to your liking.

Never Needs Setting -Easy to Read Color Display with Date and Day of the Week Display

- The Sharp Color Atomic Wall Clock has a built in receiver that automatically synchronizes itself with the WWVB radio broadcast by the US Government ‘s National Institute of Standards and Technology (NIST) in Fort Collins, Colorado. The Sharp Atomic Clock will always be accurate to within one second as it receives daily WWVB updates.

- Calendar and Day of Week ColorDisplay - Always know what day of the week it is with a quick glance. The clock displays the calendar and the day of the week.

- 3-Step Dimmer Control for Variable Backlight Control allows you to illuminate the display to your desired brightness.

Sharp (SPC569) - East to Read Color Backlit Display

Always know what day of the week it is with a quick glance. The clock displays the calendar and the day of the week. Using the Snooze/Dimmer switch on top of the display, you can easily adjust the display brightness to your liking.

Simple Easy to Use Controls

Clean, elegant design that will fit into any decor. Controls are easy to use and are on the back of the clock to give a clean simple look to any room.

Perfect Size for Bedroom, Office , or Living Room

Perfect size clock will fit almost anywhere , but is still easy to see and use with the elegant color display.

SHARP - A Name You Can Trust.

Sharp has been making quality alarm clocks for over 25 years and is the largest suppler of Retail Alarm Clocks in the United States with over 61,000,000 sold. Millions trust us with helping them start their day and staying on track.

Marathon Atomic Travel Alarm Clock with Auto Back Light Feature, Calendar and Temperature. Folds into One Compact Unit for Travel - Batteries Included - CL030036WH (White)

Marathon

Based on 2 reviews Check latest price
  • SELF SETTING: Multifunction display is self-setting and self-adjusting
  • MULTIPLE TIME ZONES: You can easily switch between 6 time zones (Pacific, Mountain, Central, Eastern, Atlantic & Newfoundland)
  • MULTIPLE LANGUAGES: Choose from 5 languages (English, French, German, Italian & Spanish)
  • AUTOMATIC BACKLIGHT: Uses a built in light sensor to detect if the clock has been placed in a dark environment, the backlight can also be manually operated; DISPLAY: Acrylic display is durable for cleaning
  • COMPACT SIZE: Measuring in at 3.25" x 0.5" x 2.75", our atomic clock is great for travel

User questions & answers

Question: Many travel alarms fold into a clamshell to protect the clock face from scratching during travel. Does this clock, folded, cover the LCD display
Answer: No. You can see in the photo that the stand has an open area in the center. That opening leaves the digital display visible when the stand is in the closed position. The control buttons, however, ARE covered when the stand is flipped over the front. I suppose it could be considered unprotected in the closed position, but it is exactly what I needed for the application that prompted my purchase. It would be easy to slide a piece of thin protective cloth or other material between the stand and the face, if there is a concern about scratches during travel.
Question: Can you set the time manually i.e. over ride the atomic feature
Answer: Yes! In the normal mode, press and hold "CLOCK" key for 2 seconds until the time zone flashes. Press "UP" or "DOWN" key to set the desired time zone. Press "CLOCK" key again until the Year digit flashes and repeat the same operation that was used to change the time zone. Continue to press "CLOCK" until the calendar and time areas appear. Use the "UP" and "DOWN" until you reach the desired settings. Press and hold the "CLOCK" key for 2 seconds to save and exit the settings. You have manually set the clock. If you do not want to receive the radio signals that will automatic set the clock, there is a switch in the battery compartment on the right side that should be moved to the off position.
Question: How long will the battery last with the night light on all night
Answer: I've had mine for a few months and it's still working like it did on Day 1.
Question: Is the background color always yellow with black letters or do you have to push backlite button to get this color
Answer: You must push the backlight button to get the clock to look like like the picture. Normally it is gray background with black numbers.

Product features

Travel Alarm Clock with Auto Back Light Feature

Marathon's Travel Alarm Clock with Auto Night Light Feature presents an automatic or manual (user selectable) back light display which activates in low light settings.

Calendar and Temperature

This clock automatically sets and adjusts the time (including day and date) using radio frequencies broadcast from NIST's Colorado Atomic Clock, thus always keeping accurate time.

Folds into One Compact Unit for Travel - Batteries Included

Displays time in 12 or 24-hour formats. Features 6 time zones (Pacific, Mountain, Central, Eastern, Atlantic or Newfoundland), one-touch glow display, indoor temperature display and an extra loud alarm. Option to choose from 5 languages (user selectable): English, French, German, Spanish and Italian.

Marathon CL030054BL Atomic Desk Clock, with Backlight, Heat & Comfort Index - Batteries Included

Marathon

Based on 396 reviews Check latest price
  • HEAT & COMFORT INDEX: Choose between a convenient, easy to read comfort or heat index
  • LARGE DISPLAY: The large, highly legible display features the time, day, date, temperature, humidity and either the comfort or heat index; DISPLAY: Push button to light up display
  • BACKLIGHT: Pressing the SNOOZE/LIGHT button triggers an amber backlight
  • ATOMIC: This clock is self setting/adjusting using radio frequencies broadcast from NIST's Colorado Atomic Clock (Atomic feature only functions in North America, If clock does not set please contact customer service for assistance)
  • ALARM WITH SNOOZE: Features a progressive alarm with a conveniently placed SNOOZE button for easy access

User questions & answers

Question: What is the size of this clock
Answer: This clock measures 3.625 x 3.625 x 1.25 inches.
Question: How do you set the time zone? There is not 'switch' on the back of my unit. Thanks
Answer: Press and hold TIME SET on the back of the unit until you see 12Hr or 24Hr flashing on the display. Press TIME SET again quickly to cycle through to the next menu option, which is timezone. Use the + and - buttons on the back of the clock to select your local timezone.
Question: Is the clock face easy to read/see during the day. I assume when you use the backlight at night it is clear, but during the day is it hard to read
Answer: The face of the clock is very shiny, so depending on the angle it's very hard to read. I have it on my desk. Most of the time it's fine, but at certain times of the day (depending on the sunlight) it's hard to read. There is no automatic back light. It's just a button on top and stays on for 5 - 10 seconds. This is really a desk clock, not a bedside clock. If you want a bedside with auto-back light, look at the CL030051BK.
Question: Does it have a backlight which automatically turns on in the dark? if so, how bright is it compared to the marathon cl
Answer: You have to press the snooze button to turn on the light which appears only for a few seconds. For light sensitive people it is perfect! The light is bright enough to see the entire clock information. I dont know the other marathon clock model.

Product features

Marathon Atomic Alarm Clock with Heat and Comfort Index

Features a progressive alarm with a conveniently placed SNOOZE button for easy access

Date and Indoor Temperature

With 6 time zones (Pacific, Mountain, Central, Eastern, Atlantic & Newfoundland) available to choose from anyone world-wide can benefit from our clock. As it is Atomic, you can easily switch between these time zones with the help of our self-setting/adjusting time. Just enable the RCC by pressing the back button let Radio frequencies broadcast from NIST’s Colorado Atomic Clock do the rest! The top right of the clock screen provides an indicator of the signal strength to be sure you are connected. With 4 levels displayed ranging from “no signal” to “excellent” you can be sure you always have the accurate information! Manually setting the time yourself is always an option! Additionally we ensure the moment your clock is operating, so is the Daylight Savings Time (DST) function. Turn it off to set it yourself is you prefer!

Includes Backlight, Snooze and Loud Alarm

Measuring at just 3.7 x 3.7 x 2.4 inches it’s a small sized clock, but does and shows quite a lot. With a large screen display of the time (Celsius and Fahrenheit), date, temperature and humidity as well as comfort or heat index you can read it from across the room. However while up close, you can easily access the buttons located at the rear if the clock and our favorite feature, the heat index and comfort index at the bottom of the clock face.

DreamSky Compact Digital Alarm Clock with USB Port for Charging, Adjustable Brightness Dimmer, Blue Bold Digit Display, Adjustable Alarm Volume, 12/24Hr, Snooze, Bedroom Desk Alarm Clock.

DreamSky

Based on 6 reviews Check latest price
  • Large Display Plug in Clocks with Smart Dimmer: Compact Streamline design yet large number display. 2” jumbo illuminated LED digits ensure the time is easy to see even for impaired vision people. The patented smart brightness dimmer design allows you set the brightness of display from 0-100 level by easy turn wheel. Needless worry the brightness, either too bright thus affecting your sleep or too dark to read time.
  • Adjustable Alarm Sound: Single alarm setting with 9 minutes snooze. No harm “ beep” alarm sound can be set from 30-90 DP as person preference . Needless worry the alarm sound, either too loud thus frightening you or too low to wake you up from deep sleeping. One simple ON/OFF button allows you disable the alarm on weekend.
  • USB Charging Port: Convenient USB port allows you to charge your smartphone , ipad or other smart device without plug in wall. handy, convenient and organized.
  • Easy Operation Clock: Intuitive setting button, experience zero stress when setting the time or alarm. Easy for kids, seniors and the elderly.
  • Outlet Powered with Battery Backup: Plug in to power the clock with the included DC adapter . 2* AAA batteries ( not included ) needed for storing time and alarm settings in case of power outage. During the backup battery, the screen will go blank and alarm will not sound .

User questions & answers

Question: No "White" digit option instead of red
Answer: " white" digit clock will be in stock after 2 weeks.
Question: does this alarm clock plug into the wall? i just want a normal plug in alarm clock
Answer: Yes, it does plug in to the wall. It is a regular wall plug adapter and a USB on the part that toes in to the clock. There is a second USB port that allows you to charge your phone right from the clock. A neat clock!!!!
Question: Can the time be read when the clock is mounted above eye level or does it need to be tilted down towards you
Answer: The clock can be read when mounted above eye level.
Question: Size of the entire unit? Thank You
Answer: According to their listing it's 5.3 inches wide, 2.6 inches tall and 1.4 inches deep.

Seiko QHR020WLH Advanced Technology R-Wave Desk Clock

Seiko

Based on 114 reviews Check latest price

Product description

Keep yourself on time and ready for any weather with this atomic desktop clock. Featuring a twelve- or twenty-four-hour time display as well as automatic calendar, this clock will ensure you keep all your appointments. Its global R-Wave, thermometer, and hygrometer help you keep track of the weather. This clock has a stand for desk placement.

The Seiko Story

Seiko


From Humble beginnings, Kintaro Hattori’s Vision for Seiko has become reality. A consuming passion for excellence - imprinted in our Corporate DNA passed from generation to generation. Seiko, for 125 years committed to the art and science of time.

A culture of innovation connects a 19th century Tokyo clock shop with 20th century advances in timekeeping to an extraordinary 21st century "quiet revolution." Continually driven by dedication and passion, established a multitude of world’s first technologies… transforming the principles of timekeeping.

The first quartz wristwatch – changed the history of time.

The first Kinetic – marked a new era in quartz watch technology.

In 1969, Seiko Astron, the first quartz wristwatch - was introduced.

In an instant, Seiko exponentially improved the accuracy of wristwatches –And Seiko technology firmly established today’s standard in Olympic and sports timing.

1984, another celebrated first – Kinetic Technology – powered by body movement.

Kinetic – a quartz mechanism with unparalleled accuracy –the driving force behind more world’s firsts.

Kinetic Chronograph – the next generation of high performance timekeeping.

Kinetic Auto Relay – automatically resets to the correct time.

Kinetic Perpetual - combining the date perfect technology of perpetual calendar with the genius of Kinetic Auto Relay.

And now Kinetic Direct Drive – move, and the watch is powered automatically. Or hand wind it and see the power you are generating in real time.

In the realm of fine watches, time is measured by Seiko innovation – A heritage of dedication to the art and science of time.

  • Sleek silver plastic frame
  • Alarm, snooze, calendar, thermometer and hygrometer
  • Folding stand included
  • Powered by 2 AA battery (included)
  • Overall dimensions 10. 25 X 6. 75 X 1

User questions & answers

Question: Can it be set to Military time
Answer: I don't own it but I think you can. I bought it for my 87 yr old Uncle and he lives in another state.
Question: How accurately does the humidity function work on this clock
Answer: It's pretty accurate. We have another clock, similar to this one which we have had for over 10 years which was purchased from Brookstones, and the humidity is within 3-5 percentage points of each other. We do have them at different parts of the same room.
Question: HOW TO TURN OFF ALARM ON MODEL # QHR020WLH
Answer: Not sure, I have never used the alarm on this clock.
Question: does it have backlight so you can read it at night
Answer: No backlight, it's an LCD only. Great otherwise though.

Product features

Everything Digital R WAVE Clock
Everything Digital R WAVE Clock

Keep yourself on time and ready for any weather with this atomic desktop clock. Featuring a twelve- or twenty-four-hour time display as well as automatic calendar, this clock will ensure you keep all your appointments. Its global R-Wave, thermometer, and hygrometer help you keep track of the weather. This clock has a stand for desk placement.

Everything Digital R WAVE Clock

Features include:

Alarm, snooze, calendar, thermometer and hygrometer

Folding stand included

Powered by 2 AA battery (included)

Overall dimensions: 10.25" X 6.75" X 1" inches

Everything Digital R WAVE Clock

What is RWave?

The radio-controlled clock displays the precise time by automatically receiving the official standard frequencies of 4 countries (40kHz/60kHz in Japan, the United States, Germany and the United Kingdom).

Everything Digital R WAVE Clock

Perfect for any room, even the kitchen.

WallarGe Digital Wall Clock,Autoset Atomic Clock with Temperature and Date,Battery Operated Alarm Clock,Large Digital Display,Easy to Read Day of The Week.(No Backlight)

WallarGe

Based on 581 reviews Check latest price
  • Atomic Self-setting Clocks - Automatically receive the time signal every day at midnight and makes any required adjustments to the time setting. For time and calendar, do not need to be set. Just simply choose the DST ON/OFF and TIME ZONE selections, the clock will automatically set to the correct time.
  • Digital Clock Large Display - No ghosting. You can read digits from different angle easily, especially suitable for the elderly and those with weak eyesight. For travel, study or work schedule. Dates are displayed accurately and reminded at any time.
  • Alarm Clock Battery Operated - Battery included. Turn on the alarm button before going to bed, and you can sleep peacefully at night, it will wake you up in the morning. It required 3 “AA” long life batteries (included) for operation, no redundant wires, easy to use.
  • Precision Temperature Monitor - This is a digital clock with a thermometer that automatically detects the temperature of the surrounding environment. Help you create the most comfortable indoor environment. Suitable for kitchen, bedrooms, living rooms, offices, classrooms, hospitals and other places.
  • Multiple Display Modes - 12 or 24 Hours display formats with clear display about hours, minutes and seconds; 4 TIME ZONES to choose between PST, MST, CST, EST with option to turn DST on or off; indoor temperature display in Celsius or Fahrenheit, allow you to keep abreast of changes in indoor temperature.

Product features

How do atomic clocks work?

Atomic clock is an extremely accurate timepiece. Most atomic clocks in North America use WWVB's transmissions to set the correct time automatically. They can receive the time signal transmitted by the National Institute of Standards and Technology (NIST).The NIST broadcasts the time signal (WWVB,60KHz) continuously from Fort Collins, Colorado. It is expected that the signal can reach a distance of over 2,000 miles from the transmitter.This signal can be received anywhere in the continental USA and Canada .

When does the clock automatically receive the time signal?

This atomic digital clock will automatically receive the time signal every day at midnight and makes any required adjustments to the time setting. After an unsuccessful signal reception, the atomic digital clock will search every hour for 7 minutes, up to 3 hours. After successful reception of the time signal you may need to change the time zone or DST setting. The default is Eastern time zone and DST on.

How to confirm the time signal received successfully?

The WAVE OK indicator and the antenna tower icon will appear on the LCD when the time signal is successfully received. In contrast, if the automatic update is unsuccessful, the WAVE and the antenna tower icon will disappear on the LCD.

Important: Do not perform any button or switch operation while a signal reception operation is in progress. You can activate a reception operation manually at any time by pressing the WWVB SEARCH button. Of course, if time signal reception fails, you can also cancel the radio reception and set the time completely manually.

What are the advantages of this atomic digital clock?

As the picture shows, this atomic digital clock not only looks fashionable, but also has multiple functions and display modes. It has the same basic time display (hour, minute, second) as ordinary digital clocks, however, it is an atomic clock too, so it has more accurate time than ordinary digital clocks. In addition, you can check the Calendar and indoor Temperature at any time.At the same time, you can choose the time display in 12/24 hours mode and the temperature display in Fahrenheit/Celsius mode, it depends on your mood. More importantly, according to your actual situation, you can choose the Time Zone (PST, MST, CST, EST) you need and whether to enable Daylight Saving Time. Once you press the DST on, it will adjust to Daylight Saving Time automatically. Last but not least, it's also an Alarm Clock (last for 2 minutes) that we use every day. No matter where you put it, it's all right. Whether in the office, home or any other place, it will bring great convenience to your life.

How to set the time manually?

1. Press and hold the WWVB SEARCH button for 2 seconds until the antenna tower on the screen disappears. Cancel the radio wave receiving function.

2. Press and hold the SET button for 2 seconds, enter the manual setting mode, the current setting position will flicker to remind, select or change the settings through the UP or Down button.

Clear digital display.

This atomic clock features a clear and large 6.6-inch x 3.6-inch LCD display area to meet the visual needs, convenient for the elderly ,children and those with weak eyesight to see the time .Time, date and temperature are displayed accurately and reminded at any time,so it's suitable for travel, study or work schedule.

Wall hanging or free standing.

This digital clock has hanging hole and fold out stand.Not only can you use it as a wall clock for decoration, you can also use it as a table clock. Suitable for living room, bedroom, kitchen wall clock or office and student desk clock.

A good companion for everyone, suitbale for any place!

Time is play very vital role in our life. It is very precious and highly important for everyone. Our lives move around the time. We live our lives according to time.If time is so important, so is the clock. Clock and time is two side of one factor. Adding a nice wall clock or desk clock can be a great addition to your home or office. This beautiful atomic digital clock is perfect no matter where it is placed.It is a great gift choice, whether for yourself, your parents, children, friends, or colleagues.

Marathon Commercial Grade Panoramic Autoset Atomic Digital Wall Clock with Table or Desk Stand, Date, and Temperature, 8 Time Zone, Auto DST, Self Setting, Self Adjusting, Batteries Included (Silver)

Marathon

Based on 2 reviews Check latest price
  • Digital Clock Large Display - Big Digits on display in Wall Clock Category! 3.6 inch numbers! This wall hanging or table standing clock with large number display. Functions as a desk alarm clock with snooze and has been designed with absolute simplicity in mind, so you can operate and read it without any fuss
  • Accurate Date and Time - This wall clock sets accurate times and features an alarm that will keep you from missing important meetings, appointments and events. Buy the most valuable clock for the least money. This clock self-sets and self-adjusts using radio frequencies broadcast from NIST’s Colorado Atomic Clock (Atomic feature only functions in North America)
  • Clock for office - 12 or 24 Hours display formats; 8 time zones to choose (PST, MST, CST, EST, AST, NST, HST & AKST) and an option to turn DST on or off; temperature display in Celsius or Fahrenheit; accurate date and time. These digital wall clocks work well for office, bathroom or livingroom decor.
  • Wall Clocks with Temperature - These digital wall clocks are equipped with high precision detection sensors, that provide you with the most accurate indoor temperatures and create the most comfortable indoor environment.
  • Autoset Battery Operated Digital Wall Clock - Once you insert two AA batteries(included), it will automatically set the correct time. You just need to select the time zone.

Product features

Large, Easy to Read Display

Crisp, at-a-glance display of the time, date and temperature!

Perfect for Commercial Use

This Marathon atomic clock is self-adjusting and self-setting, eliminating the need to manually input the time and date. Makes this clock ideal for Government, Banks, Schools, Churches, Offices, and Banks.

Perfect for Professional Use

The simple, easy-setup of this clock makes the Marathon '33 Panoramic auto-setting wall clock fantastic for, office, school, hospital, etc.

Perfect for Home Use

The clock’s sleek, contemporary design features a brushed steel effect frame and large numbers making this beautiful clock ideal for home use.

Four Colours to Choose From

Get the one that will fit your environment best! Whether it's an office, home office, or bedroom!

Marathon has been creating beautiful, reliable, and accurate timepieces since 1939!

Atomic Self-Setting Panoramic Clock

Simply insert the batteries provided with the clock and it will synchronize to the time set out by the atomic clock in Colorado once the signal is received. It can be used anywhere in continental North American including Hawaii. Choose from Pacific, Mountain, Central, Eastern, Atlantic, Newfoundland, Alaska and Hawaii standard time. The clock includes all 8 North American time zones – a worldwide exclusive Marathon clock feature! The time and date can easily be set manually for those using the clock outside of North America. Daylight Savings Time on/off option is included.

Built-In Table Stand

It easily hangs on a wall or can be placed on a table top using the sturdy fold-out stand. Easy to use, easy to set, and easy to mount or stand. Perfect for anywhere in your home, or professional environment.

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