Best Marathon Atomic Clocks In September 2026

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Here, we’ll review the top 10 Best Marathon Atomic Clocks on the market today. We’ll provide an overview of the pros and cons of each product. Read on for our selection of Best Marathon Atomic Clocks.

To help you in your search, we have completed this list of the Best Marathon Atomic Clocks.

Top Rated Best Marathon Atomic Clocks Of 2026

Rank	Product Name	Score
1	Marathon Slim Atomic Wall Clock with Indoor/Outdoor Temperature, Full Calendar and Large Display Buy Now	9.7 Buy Now
2	Marathon Atomic Alarm Clock with Heat and Comfort Index - Date and Indoor Buy Now	9.5 Buy Now
3	Marathon Atomic Travel Alarm Clock with Auto Back Light Feature, Calendar and Temperature Buy Now	9.1 Buy Now
4	Marathon Slim Atomic Full Calendar Clock with Indoor/Outdoor Temperature. Extra Long 4.5 Inch Buy Now	8.8 Buy Now
5	La Crosse Technology 513-1419BLv4-INT Backlight Atomic Full Calendar Clock with Extra Large Digits Buy Now	8.6 Buy Now
6	MARATHON CL030062BK Slim-Jumbo Atomic Digital Wall Clock with Temperature, Date and Humidity (Black) Buy Now	8.3 Buy Now
7	Marathon Large Atomic Wall Clock with Auto Backlight, Calendar, Temperature, and Humidity Buy Now	8.1 Buy Now
8	Marathon USB Charging Alarm Clock, Hotel Collection, with Dimmable Curved Screen. 2 Alarms Buy Now	7.8 Buy Now
9	hito 3.7” Atomic Travel Alarm Clock with Solar Panel, Date Day Indoor Temperature Buy Now	7.5 Buy Now
10	Marathon Small Compact Alarm Clock with Repeating Snooze, Light, Date and Temperature. Batteries Buy Now	7.2 Buy Now

1. Marathon Slim Atomic Wall Clock with Indoor/Outdoor Temperature, Full Calendar and Large Display

• Batteries included: comes with 2 aa long life batteries
• Self-setting/adjusting: using radio frequencies broadcast from nist's colorado atomic clock (atomic feature only functions in north america)
• 8 time zones: choose to display the time in 8 different time zones with option to turn daylight savings time on or off
• 12 or 24 hour: choose to display the time in 12 or 24 hour format, also shows indoor/outdoor temperature display in celsius or fahrenheit
• Highly legible display: features large, easy to read 2" high display

2. Marathon Atomic Alarm Clock with Heat and Comfort Index - Date and Indoor

• Alarm with snooze: features a progressive alarm with a conveniently placed snooze button for easy access
• 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)
• Heat & comfort index: choose between a convenient, easy to read comfort or heat index

3. Marathon Atomic Travel Alarm Clock with Auto Back Light Feature, Calendar and Temperature

• Multiple time zones: you can easily switch between 6 time zones (pacific, mountain, central, eastern, atlantic & newfoundland)
• Compact size: measuring in at 3.25" x 0.5" x 2.75", our atomic clock is great for travel
• 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
• Multiple languages: choose from 5 languages (english, french, german, italian & spanish)
• Self setting: multifunction display is self-setting and self-adjusting

4. Marathon Slim Atomic Full Calendar Clock with Indoor/Outdoor Temperature. Extra Long 4.5 Inch

• Highl definition display: features large, easy to read, 4.5" digits
• Temperature display and a free refrigerator probe: indoor and outdoor temperature in both celsius and fahrenheit. comes with a bonus refrigerator probe.
• Multi lingual options: days of week and month in 3 languages and user sele
• 7 time zones and 12 or 24 hour display options: choose to display the time in 7 different time zones with an option to have the time in 12 or 24 hour formats. also includes an option to turn daylight savings time on or off.
• Self-setting/adjusting: using radio frequencies broadcast from nist's colorado atomic clock

5. La Crosse Technology 513-1419BLv4-INT Backlight Atomic Full Calendar Clock with Extra Large Digits

• Wall hang or table standing
• Adjustable backlight (hi/low/off) using included ac adapter or battery operated on-demand and adjustable display mode: full weekday, weekday & date, seconds, or indoor temperature (f)
• Alarm with 10 minute snooze
• 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 backlight on low. and third press off the snooze/light button has the backlight on high.
• Extra-large, easy to read 2 inch time digits to assist those suffering from memory loss and/or labor with abbreviated words

6. MARATHON CL030062BK Slim-Jumbo Atomic Digital Wall Clock with Temperature, Date and Humidity (Black)

• Easy to set and use: comes equipped with front set buttons for alarm, snooze and mode options
• Multiple time zones: you can easily switch between 4 time zones (eastern, pacific, mountain & central) with option to turn on or off daylight savings time
• Slim jumbo display - only 1-inch thick, featuring 4.5-inch digits for easy viewing
• Multiple display modes - 12 or 24 hour display formats with temperature display in celsius or fahrenheit.
• Self-setting/adjusting - using radio frequencies broadcast from nist's colorado atomic clock. automatic atomic signal - it cannot be turned on/off manually. (atomic feature only functions in north america)

7. Marathon Large Atomic Wall Clock with Auto Backlight, Calendar, Temperature, and Humidity

• Multiple languages: choose from 7 languages (english, danish, dutch, french, german, italian & spanish)
• Fahrenheit & celsius: option for either fahrenheit or celsius for the indoor temperature display
• Easy to read: the large wide-angle easy to read display has an ambient light sensor which triggers a soft backlight when it is dark. rcc icon only shows when searching for signal
• Multiple time zones: you can easily switch between 6 time zones (pacific, mountain, central, eastern, atlantic & newfoundland)
• Indoor humidity feature: along with the time, day, month, date and indoor temperature, this clock also displays indoor humidity

8. Marathon USB Charging Alarm Clock, Hotel Collection, with Dimmable Curved Screen. 2 Alarms

• Alarm with snooze: easy to set alarm with snooze function (5 minute intervals)
• Ac adapter: universal ac adapter. battery backup for clock. includes batteries.
• Usb charging: 1 fast charging usb port on the right side for convenience
• Bright led display with 4.7 cm large digits: variable display modes, choose between high (bright), low (dim) or off
• Sleek modern design: curved shape creates optimal viewing angle and unique appearance

9. hito 3.7” Atomic Travel Alarm Clock with Solar Panel, Date Day Indoor Temperature

• Battery operated w/ solar panel: hito digital bedside alarm clock works with 2x aa batteries. it also features solar panel (to prolong battery life).
• 5-second backlight: anytime, you can press the top button to trigger the 5-second backlight. it has no auto night light.
• Easy to set: 3 simple steps and wait for the correct time to set (for more details, check the product description below). clock size: 3.7 x3.7 x1.2.
• Indoor temperature & humidity: this clock also displays indoor temperature (fahrenheit/ celsius) and indoor humidity.
• Self-setting w/ 4 timezones: atomic clock receives radio time signals from colorado and updates itself with accurate time and date. 4 timezones (p/ m/ c/ e) selectable.

10. Marathon Small Compact Alarm Clock with Repeating Snooze, Light, Date and Temperature. Batteries

• 7 languages- english, danish, dutch, french, german, italian & spanish
• Easy to set- large and easily accessible primary buttons. hold the top red alarm button for 3 seconds to activate and set the alarm time
• Light- super illumination cool blue backlight. button activated backlight is gentle on the eyes while providing maximum illumination. display remains illuminated for approximately 5 seconds
• Compact- compact and lightweight, measuring in at 3.1 x 1 x 3 in (l x w x h)
• Features- 12/24hr display, calendar (month, date and day) and temperature (c or f)