20 Best Atomic Clocks [2024]

Are you looking for the best atomic clocks? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling atomic clocks.

We Recommended:

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1 WallarGe Atomic Clock with Outdoor and Indoor Temperature - Self-Setting Alarm Day Digital Clock... WallarGe Atomic Clock with Outdoor and Indoor Temperature - Self-Setting Alarm Day Digital Clock...
2 Sharp Atomic Clock - Atomic Accuracy - Never Needs Setting! -New Gloss Black Style - Jumbo 3' Easy... Sharp Atomic Clock - Atomic Accuracy - Never Needs Setting! -New Gloss Black Style - Jumbo 3"...
3 La Crosse Technology 513-1417CH-INT Atomic Digital Clock with Temperature and Moon Phase, 11.10'L x... La Crosse Technology 513-1417CH-INT Atomic Digital Clock with Temperature and Moon Phase, 11.10"L...
4 La Crosse Technology WT-3129B 12 Inch Atomic Analog Wall Clock, Black La Crosse Technology WT-3129B 12 Inch Atomic Analog Wall Clock, Black
5 La Crosse Technology WT-8005U-S Atomic Digital Wall Clock with Indoor Temperature, Silver La Crosse Technology WT-8005U-S Atomic Digital Wall Clock with Indoor Temperature, Silver
6 WallarGe Atomic Clock with Indoor Temperature and Humidity,Self-Setting Digital Wall Clock or Desk... WallarGe Atomic Clock with Indoor Temperature and Humidity,Self-Setting Digital Wall Clock or...
7 Sharp Atomic Analog Wall Clock - 12' Silver Brushed Finish - Sets Automatically- Battery Operated -... Sharp Atomic Analog Wall Clock - 12" Silver Brushed Finish - Sets Automatically- Battery Operated...
8 La Crosse Technology W85961 12 Inch Atomic Analog Black Wall Clock La Crosse Technology W85961 12 Inch Atomic Analog Black Wall Clock
9 The Ultimate Wall Clock - 14' Atomic, Black, Easy to Read, Perfect for Home, Office, School, Indoor... The Ultimate Wall Clock - 14" Atomic, Black, Easy to Read, Perfect for Home, Office, School,...
10 La Crosse Technology Atomic Digital Clock with Outdoor Temperature, Wood Oak, 0 La Crosse Technology Atomic Digital Clock with Outdoor Temperature, Wood Oak, 0
11 La Crosse Technology 513-1417AL-INT Atomic Clock w Outdoor Temp, Grey/Black La Crosse Technology 513-1417AL-INT Atomic Clock w Outdoor Temp, Grey/Black
12 La Crosse Technology WT-3129S 12 Inch Atomic Analog Wall Clock-Silver, 12' La Crosse Technology WT-3129S 12 Inch Atomic Analog Wall Clock-Silver, 12"
13 Atomic Clock DOVEET-Digital Wall Clock Never Needs Setting/ Easy to Read/Easy Set Up/Indoor Outdoor... Atomic Clock DOVEET-Digital Wall Clock Never Needs Setting/ Easy to Read/Easy Set Up/Indoor...
14 La Crosse Technology WT-3161WH-INT 16 Inch Stainless Steel Atomic Clock-White Dial, 16', Metal Frame La Crosse Technology WT-3161WH-INT 16 Inch Stainless Steel Atomic Clock-White Dial, 16", Metal Frame
15 Sharp Atomic Desktop Clock – Auto Set Digital Alarm Clock - Atomic Accuracy - Easy to Read Screen... Sharp Atomic Desktop Clock – Auto Set Digital Alarm Clock - Atomic Accuracy - Easy to Read...
16 La Crosse Technology 513-1419BLv4-INT Backlight Atomic Full Calendar Clock with Extra Large Digits -... La Crosse Technology 513-1419BLv4-INT Backlight Atomic Full Calendar Clock with Extra Large Digits...
17 BALDR Atomic Alarm Clock in Color - Digital Clock with Large Display - Calendar & Moon Phase -... BALDR Atomic Alarm Clock in Color - Digital Clock with Large Display - Calendar & Moon Phase -...
18 La Crosse Technology WS-8115U-S-INT Atomic Digital Wall Clock with Indoor and Outdoor Temperature... La Crosse Technology WS-8115U-S-INT Atomic Digital Wall Clock with Indoor and Outdoor Temperature...
19 La Crosse Technology Atomic Analog Wall Clock, 10', Silver La Crosse Technology Atomic Analog Wall Clock, 10", Silver
20 La Crosse Technology 404-1235UA-SS 14 Inch UltrAtomic Analog Stainless Steel Wall Clock La Crosse Technology 404-1235UA-SS 14 Inch UltrAtomic Analog Stainless Steel Wall Clock
Bestseller No. 1
WallarGe Atomic Clock with Outdoor and Indoor Temperature - Self-Setting Alarm Day Digital Clock...
  • Extremely Accurate Digital Clock – Never Need Setting. Atomic clock has a built-in receiver that automatically synchronizes itself with the WWVB...
  • Wireless Outdoor Temperature Sensor - The Wireless outdoor sensor (included) transmits the outdoor temperature to the Atomic Wall Clock. The sensor...
  • Digital Wall Clock or Desk Clock - Jumbo 2.5" Tall Time Digital Display - Use as either a wall clock or as a desk clock, it is easy to read, easy to...
  • Multiple Display Modes - 12 or 24 Hour time formats with accurate and clear second, minute and hour display; 4 time zone to choose between PST, MST,...
  • Battery Operated Alarm Clock - This calendar alarm days clock only required batteries for clock and outdoor sensor, which means no wire installation...
Bestseller No. 2
Sharp Atomic Clock - Atomic Accuracy - Never Needs Setting! -New Gloss Black Style - Jumbo 3" Easy...
  • Atomic Accuracy: The Atomic clock has a built-in receiver that automatically synchronizes itself with the WWVB radio broadcast by the US...
  • Wireless Outdoor Sensor: The Wireless outdoor sensor (included) transmits the outdoor temperature to the Atomic Wall Clock. The sensor can be placed...
  • Jumbo 3” Tall LCD Time Display - Easy to Read, Easy to Use, Easy to Set up - Use as either a wall clock, or as a desk clock with integrated stand....
  • Displays indoor and outdoor temperature - Displays calendar and day of week
  • Battery powered: Main unit 3 x AA batteries - Sensor 2 x AAA batteries (not included)
SaleBestseller No. 3
La Crosse Technology 513-1417CH-INT Atomic Digital Clock with Temperature and Moon Phase, 11.10"L x...
  • 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
SaleBestseller No. 4
La Crosse Technology WT-3129B 12 Inch Atomic Analog Wall Clock, Black
  • Automatically sets to exact time
  • Accurate to the second
  • Automatically updates for Daylight Saving Time (ON/OFF option)
  • 4 Time zones: PT, MT, CT, ET
  • Simple Operation: Insert 1 AA Alkaline Battery (not included) or ADD 2 additional AA to extend battery life (up to 3 yrs)
SaleBestseller No. 5
La Crosse Technology WT-8005U-S Atomic Digital Wall Clock with Indoor Temperature, Silver
  • Atomic all clock with self-setting time and date, indoor temp, alarm. Please note: Product has ONLY indoor temperature, NOT outdoor temperature.
  • Automatically updates for seasonal time changes where applicable
  • Displays time, date, day, temp on one screen; wall hanging or free standing;
  • Measures 9 by 1 by 7.2 inches; requires 2 AA batteries (not included)
Bestseller No. 6
WallarGe Atomic Clock with Indoor Temperature and Humidity,Self-Setting Digital Wall Clock or Desk...
  • Atomic Digital Clock Auto Set (no back light) - Using radio frequencies broadcast from NIST’s Colorado , the clock will automatically set to the...
  • Atomic Wall Clocks Battery Operated with Alarm - This digital calendar alarm day clock required 3 “AA” long life batteries (Included) for...
  • Clock with Temperature and Humidity - Excellent wall clocks for living room, office, bathroom decor,etc. Help you monitor indoor temperature and...
  • Atomic Clock Large Display for seniors - WallarGe atomic clock has been designed with absolute simplicity in mind, you can also set it manually...
  • 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...
Bestseller No. 7
Sharp Atomic Analog Wall Clock - 12" Silver Brushed Finish - Sets Automatically- Battery Operated -...
  • ATOMIC ACCURACY: The Atomic clock has a built-in receiver that automatically synchronizes itself with the WWVB radio broadcast by the US...
  • AUTOMATICALLY SETS: Clock resets regularly by radio-control to match the US Atomic Clock in Colorado and adjusts automatically for daylight savings...
  • BRUSHED SILVER FRAME: Brushed frame adds style and longevity to any decor
  • BATTERY OPERATED - (Requires 1 x AA batteries - not included)
  • EASY TO READ - EASY TO USE: Simple, easy to read style fits any decor and is easy to read - perfect for any room in the house: den, office, kitchen,...
Bestseller No. 8
La Crosse Technology W85961 12 Inch Atomic Analog Black Wall Clock
  • Automatically sets to exact time
  • Accurate to the second
  • Automatically updates for Daylight Saving Time (ON/OFF option)
  • 4 Time zones: PT, MT, CT, ET
  • Simple operation: insert 1 AA alkaline battery (not included)
Bestseller No. 9
The Ultimate Wall Clock - 14" Atomic, Black, Easy to Read, Perfect for Home, Office, School, Indoor...
  • THE MODERN WALL CLOCK HAS BEEN PERFECTED. Great for any room at home, work or classroom. The classic black frame with satin finish and modern design...
  • EASY TO READ - Measuring at a full 14” round, our wall clock is easier to read from long distances, day or night. Razor sharp, dense black ink on...
  • PERFECT FOR INDOOR AND OUTDOOR USE - Our custom designed exterior battery cover combined with polycarbonate case and lens makes The Ultimate Wall...
  • 100% MONEY BACK GUARANTEE - If you don’t love your new wall clock, simply return it for your money back, no questions asked. Backed by a Full Year...
  • BACKED BY A SERVICE THAT IS "SECOND" TO NONE - The experts at Team Sparx “hour” ready, willing and able to help troubleshoot and resolve any...
SaleBestseller No. 10
La Crosse Technology Atomic Digital Clock with Outdoor Temperature, Wood Oak, 0
  • Atomic self set time and date with optional manual set
  • Automatic Daylight savings time reset (on/off option)
  • Large 2.125 inch time digits for easy reading
  • Calendar: month, date, day
  • Monitors Indoor and wireless outdoor temperature (F/C)
SaleBestseller No. 11
La Crosse Technology 513-1417AL-INT Atomic Clock w Outdoor Temp, Grey/Black
  • Atomic self set time and date with automatic daylight saving time resets (optional on/off)
  • Monitors indoor & wireless outdoor temperature (F/C) with trend arrows
  • Large 2. 125 inch time digits for easy reading
  • Calendar: month, date, day
  • Wall Hanging or Free standing
Bestseller No. 12
La Crosse Technology WT-3129S 12 Inch Atomic Analog Wall Clock-Silver, 12"
  • Accurate atomic self setting time
  • Automatic daylight saving time reset
  • Silver plastic winder frame
  • 4 time zone settings
  • Simple operation: insert 1 aa alkaline battery (not included) or add 2 additional aa to extend battery life (up to 3 yrs)
Bestseller No. 13
Atomic Clock DOVEET-Digital Wall Clock Never Needs Setting/ Easy to Read/Easy Set Up/Indoor Outdoor...
  • 🌦️【Atomic Accuracy】The atomic clock has a built-in receiver, and this receiver can receive the WWVB broadcast signal of the National...
  • 🌦️【Jumbo 4.5” Tall LCD Time Display】Atomic wall clock has jumbo 4.5" tall LCD time display - easy to read, Displays time (hours, minutes,...
  • 🌈【Wireless Outdoor Sensor】Wireless outdoor sensor will accurately measure indoor/outdoor temperature & humidity in °F or °C, outdoor...
  • ❄️【Battery Powered】Digital wall clock indoor outdoor thermometer wireless is powered by 4AA batteries, the new generation of powerful Doveet...
  • 🎁【What You Get】1×atomic wall clock; 1×outdoor sensor; 1×Manual; measure size of the digital wall clock is 14.3''×9.3''×1.3''
SaleBestseller No. 14
La Crosse Technology WT-3161WH-INT 16 Inch Stainless Steel Atomic Clock-White Dial, 16", Metal Frame
  • Automatically sets to exact time
  • Accurate to the second
  • Automatically updates for Daylight Saving Time (ON/OFF option)
  • 4 Time zones: PT, MT, CT, ET
  • Simple Operation: Insert 1 AA Alkaline Battery (not included)
SaleBestseller No. 15
Sharp Atomic Desktop Clock – Auto Set Digital Alarm Clock - Atomic Accuracy - Easy to Read Screen...
  • Atomic Alarm Clock - The Atomic Clock has a built in receiver that automatically synchronizes itself with the WWVB radio broadcast by the US...
  • 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...
  • 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...
  • 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...
Bestseller No. 16
La Crosse Technology 513-1419BLv4-INT Backlight Atomic Full Calendar Clock with Extra Large Digits -...
  • Adjustable backlight (hi/low/off) using Included AC adapter or battery operated on-demand and adjustable display mode: full weekday; weekday & date;...
  • Extra-large, easy to read 2 inch time digits to assist those suffering from memory loss and/or labor with abbreviated words
  • Alarm with 10 minute snooze
  • Wall hang or table standing
  • Note : When plugged in the AC adapter the clock Snooze/light button has 3 settings, One press can turn off the light, Second press can have the...
SaleBestseller No. 17
BALDR Atomic Alarm Clock in Color - Digital Clock with Large Display - Calendar & Moon Phase -...
  • ATOMIC CLOCK FOR EASY SETUP – Just set the time zone and leave the clock plugged in overnight; Our clock will automatically adjust time & calendar...
  • SHARP COLOR LCD DISPLAY – With white backlit, and adjustable screen brightness, you can easily read the explicit images, day or night, without being...
  • ALARM WITH SNOOZE FUNCTION - No need to worry about those mornings when you can't wake up. The snooze button on top will let you catch a little extra...
  • BUILT-IN BACKUP BATTERY - The clock is powered by supplied AC adaptor. It also includes a built-in CR2032 cell battery to store the time and alarm...
  • BACKLIGHT ON DEMAND - Press the "Snooze/Light" button on top of the clock to activate the dimmer feature, adjust backlight brightness among 100%, 50%,...
Bestseller No. 18
La Crosse Technology WS-8115U-S-INT Atomic Digital Wall Clock with Indoor and Outdoor Temperature...
  • Wirelessly monitors indoor/outdoor temperatures
  • Atomic Clock automatically & adjusts for daylight Saving time
  • 12- & 24-hour Clock. Remote transmission of outdoor temperature to temperature station by 915 MHz
  • Wall hanging or free standing; Perpetual calendar & Time zone setting
  • Requires 2 AA & 2 AAA batteries.Accurate and self-setting atomic time and date with automatic daylight saving time.Indoor and outdoor temperature; 200...
SaleBestseller No. 19
La Crosse Technology Atomic Analog Wall Clock, 10", Silver
  • 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
SaleBestseller No. 20
La Crosse Technology 404-1235UA-SS 14 Inch UltrAtomic Analog Stainless Steel Wall Clock
  • Receives WWVB time signal in buildings, where no other Atomic clock can
  • Enhanced Reception with Dual Antennas; Excellent for schools, hospitals, and commercial buildings
  • World time zone clock ‐ Set to any Time Zone around the World!
  • 5 year battery life. Q-mode (Quartz mode) for manual time setting. Low power detection indicator
  • Stainless steel framework

Having trouble finding a great atomic clocks?

This problem is well understood by us because we have gone through the entire atomic clocks research process ourselves, which is why we have put together a comprehensive list of the best atomic clockss available in the market today.

After hours of searching and using all the models on the market, we have found the best atomic clocks for 2023. See our ranking below!

How Do You Buy The Best Atomic Clocks?

Do you get stressed out thinking about shopping for a great atomic clocks? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching atomic clocks, which is why we have assembled a comprehensive list of the greatest atomic clocks available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for atomic clocks that you consider buying. Your questions might include the following:

  • Is it worth buying an atomic clocks?
  • What benefits are there with buying an atomic clocks?
  • What factors deserve consideration when shopping for an effective atomic clocks?
  • Why is it crucial to invest in any atomic clocks, much less the best one?
  • Which atomic clocks are good in the current market?
  • Where can you find information like this about atomic clocks?

We’re convinced that you likely have far more questions than just these regarding atomic clocks, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for atomic clocks, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible atomic clocks. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an atomic clocks buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available atomic clocks currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of atomic clocks has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an atomic clocks?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your atomic clocks.
  5. Customer Ratings: Number ratings grade atomic clocks objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their atomic clocks.
  7. Product Quality: You don’t always get what you pay for with an atomic clocks, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an atomic clocks is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining atomic clocks information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding atomic clocks is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

FAQ:

Q: How are atomic clocks so accurate at keeping time?

A: Heat,Bundle,and Sort. First,the atoms are heated in an oven and bundled into a beam. … Irridate and Count. The state-A atoms are sent through a resonator where they are subjected to microwave radiation,which triggers some of the atoms to change to state B. … Tune and Measure. …

Q: Is it possible to purchase an actual atomic clock?

A: Yes, easily – although you might find the prices somewhat daunting. There are basically 3 types of commercially available “atomic clocks” – the cheapest and least (relatively) accurate ones are based on a specific hyperfine transition of rubidium – there are lots of vendors, but this is a reasonable example:

Q: How do you set the time on an atomic clock?

A: How do you set the time on an atomic clock? ¡ To manually set the time, during normal run time press the M.SET button for 5 seconds to enter Manual Setting Mode. Now you can set the time manually. Press the M.SET button once and the minute hand jumps one minute per press of the button; alternatively hold down the M.SET button continuously and …

Q: What is the correct atomic time?

A: National standards agencies in many countries maintain a network of atomic clocks which are intercompared and kept synchronized to an accuracy of 10 −9 seconds per day (approximately 1 part in 10 14 ). These clocks collectively define a continuous and stable time scale, the International Atomic Time (TAI).

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