10 Best Atomic Clocks of 2025

Tested and Reviewed: Top 10 Atomic Clocks deals with expert ratings from 8.1 to a perfect 10

March 2026 Edition

Editor's Choice

9.7

WallarGe

WallarGe Atomic Clock with Outdoor and Indoor Temperature - 12.5 Inch Self-Setting Digital Clock Large Display, Battery Operated Wall Clocks or Desk Clocks for Bedroom, Livingroom, Office

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Editor's bottom line:

“This atomic clocks is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Atomic Wall Clock Never Need Setting. Atomic clock has a built-in receiver that automatically synchronizes itself with the WWVB radio broadcast by the US Governments National Institute (NIST) in Fort Collins, Colorado. The Atomic Clock will always be accurate to within one second as it receives daily WWVB updates.
Atomic Clock with Indoor/Outdoor Temp - The Wireless outdoor sensor transmits the outdoor temperature to the atomic clock. The sensor should be placed within 100ft of the clock. Also, clock has a built-in high-quality indoor temperature sensor so that you can read the temperature both indoor and outdoor.
Digital Wall Clock Large Display - Jumbo 2.5" Height Time Digital Display - Use as either a wall clock or as a desk clock, it is easy to read, easy to Use and easy to set up. This atomic clock has been designed with absolute simplicity in mind, you can also set it manually. They are excellent clocks for seniors, perfect for anyplace in your home or office.
Atomic Clock Digital 12/24 Hour time formats with accurate and clear second minute and hour display; 4 time zone to choose (PST, MST, CST, EST); auto daylight saving time; temperature display units in Celsius () or Fahrenheit ().
Digital Wall Clock Battery Operated Both clock and outdoor sensor are supported by batteries only, no need to plug or charge(Batteries not included). The existed alarm features can wake you up in the morning or help you keep track of dates and days of the week to avoid missing any important meetings or appointments.

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Picked by 397 people today

9.5

WallarGe

WallarGe Atomic Digital Wall Clock Battery Operated, Self-Setting, Large Display with Temperature, Date, Day of The Week, Silent Wall Mount Digital Clock, 4 Time Zones, DST

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Main Highlights

Atomic Clock Digital - The clock has a built-in receiver that automatically synchronizes itself with WWVB radio broadcast, which will set and update time automatically every midnight, no need to set manually. It has four time zones selectable: EST, PST, MST, CST.
Digital Wall Clock Battery Operated - This digital clock is supported by 3xAAA battery (Not included). No wires make it can be placed anywhere; and the low battery symbol reminds you to replace the battery in time to avoid getting the wrong time due to low power.
Digital Wall Clock Large Display - The LCD screen measures 6.2 in x 3.7 in and it displays time, indoor temperature, day and date. Each section is showed separately, allows you to read the content easily and quickly.
Atomic Clock with Auto DST - With DST on, the time would go forward or backward one hour automatically in daylight saving time, no worry about time changing on that day. If for no need, it could also be turned off, then AUTO DST disappears from screen.
Digital Alarm Clock - The alarm could be turned on or off according to your need, just click the button to set. When alarm is set on, there is a bell icon staying on screen. The icon will disappear if alarm is set off. When alarm goes off, just click any button to stop it on the day.
12/24Hr Time Mode - This atomic clock has two display modes (standard time and military time). When clock time is set for one mode, the alarm time would be followed same automatically. Also, the temperature display could be exchanged from Fahrenheit to Degree by clicking the button on back.

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9.5

WallarGe

WallarGe Atomic Clock with Indoor Temperature and Humidity, 12.5 Inch Self-Setting Digital Wall Clock or Desk Clock, Battery Operated Digital Clock Large Display for Seniors, Auto DST

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Main Highlights

Atomic Digital Clock Auto Set (No back light) - Using radio frequencies broadcast from NISTs Colorado , the clock will automatically set to the correct time. Automatically adjusts to Daylight Savings Time while set the DST on.
Atomic Wall Clocks Battery Operated with Alarm - This digital calendar alarm day clock required 3 AA long life batteries (Not included) for operation, no redundant wires, easy to use. Turn on the alarm clock before going to bed, it will wake you up in the morning.
Clock with Temperature and Humidity - Excellent wall clocks for living room, office, bathroom decor,etc. Help you monitor indoor temperature and humidity to avoid cold. 12/24 hours formats with clear Hours, Minutes and Seconds display; 4 Time Zone to choose.
Atomic Clock Large Display for seniors - WallarGe atomic clock has been designed with absolute simplicity in mind, you can also set it manually without any more ado. Wall clock or desk clock, large and clear digital display, easy to read.
Digital Wall Clock with Accurate Date and Time - This digital calendar alarm day clock can help you keep track of dates, days of the week and times to avoid missing any important meetings, appointments or anniversaries, work well for work, study or travel schedule.

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9.2

AKCISOT

AKCISOT Atomic 10 Inch Wall Clock Analog Clocks for Indoor Kitchen, Battery Operated Clock for Bedroom Office Classroom Living Room(Black)

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Main Highlights

Reliable Atomic Clocks: Ensures exact time accuracy by syncing with the atomic clock via radio signals.
Whisper-Quiet Movement: Silent sweep second hand ensures a peaceful environment, making it perfect for quiet spaces like bedrooms or offices.
Clear and Easy-to-Read Display: Features a large, high-contrast dial with bold numbers for effortless readability from a distance.
Easy to Set: The time zone can be easily set with the switch. (There are 4 options available: PT-Pacific, MT-Mountain, CT-Central, ET-Eastern). Additionally, the daylight saving time can be manually set for added convenience.
Operation Feature: Easy operation with 1 AA alkaline battery (not included).

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9.0

WallarGe

WallarGe Atomic Clock with Indoor Outdoor Temperature - 8.5'' Digital Clock Battery Operated, Self-Setting, 4 Time Zones, DST

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Main Highlights

- The atomic clock has a built-in receiver that automatically synchronizes itself with the WWVB radio broadcast, which will update time automatically every midnight to ensure accurate time. It has 4 time zones: EST, CST, MST, PST. (No Backlight)
- This atomic clock can display both indoor and outdoor temperature, helps you better manage your daily life. The wireless outdoor sensor monitors and transmits the outdoor temperature to the clock to display. The sensor should be placed within 330 feet and out of direct sunlight or rain.
( ) - Both the digital clock and outdoor sensor are supported by non-rechargeable batteries: 3xAAA for clock and 2xAA for outdoor sensor. (Batteries are not included). When batteries of clock or sensor are running low, there would be a low battery symbol appearing on screen and blinking, reminding you to replace new batteries in time.
- When alarm or DST is set on, there would be a corresponding icon staying on screen. Both of them could be turned off manually if for no need. With DST on, clock will go forward or fall back one hour automatically in daylight saving time.
, - The clock shows time with seconds in big bold in the middle of screen, help you read the time easily and quickly. It also displays indoor temp/outdoor temp/day/date on bottom, provides a full information you need on clock.
/ / - This atomic clock has two display modes (standard time and military time). When clock time is set for one mode, the alarm time would be followed same automatically. Also, the temperature display could be exchanged from Fahrenheit to Degree by clicking the button on back.

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8.8

La Crosse Technology

La Crosse Technology WT-3129B 12 Inch Atomic Analog Wall Clock, Pack of 1, Black

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Main Highlights

[Automatic Time Updates] The Atomic Time Feature conveniently allows the clock to sync with the WWVB radio transmission from Fort Collins, CO, for accurate time updates.
[Classic design] With unmatched attention to detail, the WT-3129B is highlighted by a distinctive matted 12-inch black frame with a silver bezel a statement piece for any home setting.
[5-Year Battery Life] A quality set of 3 AA batteries will keep the clock running for up to 5 years an impressive feat offering unparalleled convenience and peace of mind.
[SIMPLE-SET] Simple adjustable switch to your Time Zone (4 different selections: PT-Pacific, MT-Mountain, CT-Central, ET-Eastern)
[A Brand You Can Trust] Family-owned and operated since 1983, La Crosse Technology is the world leader in Atomic Time and Weather Instruments. Designed in La Crosse, WI, our products have unmatched support resources, including printed setup guides, helpful video tutorials, and lifetime access to our USA-based tech support team.
Accurate, atomic self-setting time & date with automatic resets for Daylight Saving time
Black plastic wide frame
4 Time Zone Settings
Simple operation with 1 AA alkaline battery
Accurate to the Second

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8.6

La Crosse Technology

La Crosse Technology Wall/Table Clock, 6.61-inch x 11.1-inch x 1.14-inch (513-1417CH-INT)

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Main Highlights

Sold as 1 Each.
This digital atomic wall/table clock features a classic black and brown finish. Includes a built-in stand for a table-top display and a wireless sensor to read and signal the outside temperature. Setup available in English and Spanish.
Dimensions: 6.61"H x 11.1"W x 1.14"D. Sensor dimensions: 5.12"H x 1.57"W x 0.79"D. 1-year manufacturer limited warranty.
Clock uses two AA batteries (not included) and the sensor uses two AA batteries (not included). Wireless outdoor temperature sensor features transmission range up to 300'.
Large, easy-to-read digital display with 2.13"H digits shows time, day of week, date, indoor/outdoor temperatures, and moon phase. Time sets up automatically and adjusts for daylight saving time.

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8.3

La Crosse Technology

La Crosse Technology W88631 Digital Atomic Black Wall Clock with Temperature

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Main Highlights

[PRECISE ATOMIC TIME] Accurate to the second Atomic time will automatically set and readjust to Daylight Saving Time (OFF option)
[SIMPLE BATTERY OPERATED] Simple Set to your Time Zone selection (7 different choices, AST, EST, CST, MST, PST, AKT, HAT)
[CALENDAR/TEMP] View month/day/weekday and Current Ambient temperature (°F/°C adjustable
[TIME ALARM] Crescendo alarm sound with snooze duration of an extra 10 minutes
Table stand or Wall Hang option

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8.1

Geevon

Geevon 12 Inch Atomic Wall Clock - Self-Setting Analog Clock with Automatic Time Sync - Battery Operated for Home Office School - Silver Frame

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Main Highlights

[Accurate Automatic Wall Clock] Geevon 12" atomic clock battery operated has an accurate built-in receiver that can automatically synchronize with WWVB broadcasts from the National Institute of Research (NIST) located in Fort Collins, Colorado. There are 4 time zoned for you to choose. Also, the large atomic wall clock will automatically adjusts for Daylight Saving Time (ON/OFF option).
[Battery Operated Atomic Clock] Powered by 1 AA alkaline battery (included), this self setting clock will receive longer and more stable power. In addition, the movement of the atomic analog wall clock is equipped with a with a dust cover, which can prevent dust from entering the movement and affecting its operation. The service life of the atomic wall clocks battery operated will be greatly extended
[Durable and Sturdy] The frame of this Atomic Kitchen Wall Clock is made of excellent quality ABS with good durability wear resistance and high hardness and glossy finish.
[Easy to Hang] The 12 inch atomic analog clock comes with a hook, different from other adhesive hooks in that it can be firmly fixed to the wall. It prevents the atomic wall clock from falling off the wall due to the unstable hook and provides you with an easy installation so that you do not have to spend time selecting the right hook for this atomic wall clocks battery operated
[A Good helper for Decor Your Home] This 12 inch/30.48cm atomic analog clock, hooks,battery, waterproof dustproof cover and is made of silver ABS which adopts a simple and stylish design, the pure white clock face contrasts with the bold large black digits, clear bold numbers help you to read the time more easily from many angles. Perfect for bedroom, living room, kitchen, office, hospital, office, gym, classroom and so on
[Note] In most areas, a signal can only be received at night. lf your clock does not receive the WWVB signal immediately, just wait overnight and it should be set in the morning. lt may take up to 48 hours.

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8.1

La Crosse Technology

La Crosse Technology WT-3102S Atomic Analog Wall Clock, 10", Silver

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Main Highlights

Atomic Time with Manual Setting
Automatically Sets to Exact Time
Accurate to the Second
Automatically Updates for Daylight Saving Time (On/Off Option)
4 USA Time Zone Settings.Simple Operation: Insert 1 AA Alkaline Battery
For precise time in the home or office, atomic analog clock from La Crosse Technology
Frame features chrome-colored finish with black inner trim; flat lens covers clock face from dust and debris
Clock resets regularly by radio-control to match the US Atomic Clock in Colorado and adjusts automatically for daylight savings time
Users select from 4 time zone setting buttons on the reverse for area time; requires separate purchase of 1 AA battery
Clock measures 10 inches in diameter and 1-2/3 inch in depth with a 7-1/4-inch diameter face; this clock is covered by a 1-year warranty

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Our Best Overall Choice

Best Choice

9.7

WallarGe

WallarGe Atomic Clock with Outdoor and Indoor Temperature - 12.5 Inch Self-Setting Digital Clock Large Display, Battery Operated Wall Clocks or Desk Clocks for Bedroom, Livingroom, Office

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Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Atomic Wall Clock Never Need Setting. Atomic clock has a built-in receiver that automatically synchronizes itself with the WWVB radio broadcast by the US Governments National Institute (NIST) in Fort Collins, Colorado. The Atomic Clock will always be accurate to within one second as it receives daily WWVB updates.
Atomic Clock with Indoor/Outdoor Temp - The Wireless outdoor sensor transmits the outdoor temperature to the atomic clock. The sensor should be placed within 100ft of the clock. Also, clock has a built-in high-quality indoor temperature sensor so that you can read the temperature both indoor and outdoor.
Digital Wall Clock Large Display - Jumbo 2.5" Height Time Digital Display - Use as either a wall clock or as a desk clock, it is easy to read, easy to Use and easy to set up. This atomic clock has been designed with absolute simplicity in mind, you can also set it manually. They are excellent clocks for seniors, perfect for anyplace in your home or office.
Atomic Clock Digital 12/24 Hour time formats with accurate and clear second minute and hour display; 4 time zone to choose (PST, MST, CST, EST); auto daylight saving time; temperature display units in Celsius () or Fahrenheit ().
Digital Wall Clock Battery Operated Both clock and outdoor sensor are supported by batteries only, no need to plug or charge(Batteries not included). The existed alarm features can wake you up in the morning or help you keep track of dates and days of the week to avoid missing any important meetings or appointments.

Show Price

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