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MARATHON Atomic Travel Alarm Clock with Auto Night Light, Black - 12 or 24-Hour Time, Six Time Zones, Indoor Temperature, Date - One AAA Battery Included
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Brand | MARATHON |
Color | Black |
Style | Digital |
Product Dimensions | 2.75"W x 3"H |
Age Range (Description) | Adult |
Indoor/Outdoor Usage | Indoor |
Theme | Mountain |
Are Batteries Included | Yes |
Mounting Type | Tabletop |
Item Weight | 0.26 Pounds |
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Product guides and documents
Product Description

Lightweight & Compact
Sized at 3x1.2x3 inches and weighing just 0.25 pounds, this clock is designed to fit anywhere and is perfect for travel.
Informative Display
Includes the time in 12- or 24-hour format, the temperature in Celsius or Fahrenheit, and the month, date & day in 7 different languages.
One Touch Backlight
Simply press the button on the back of the clock to activate the cool blue backlight for five seconds at a time.
Loud Alarm
Easy to set up and use, the alarm is loud & clear with a progressive interval ring.

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Compact Alarm Clock
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Compact Alarm Clock
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Compact Alarm Clock
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Compact Alarm Clock
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Customer Reviews |
4.1 out of 5 stars 1,296
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4.1 out of 5 stars 1,296
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4.1 out of 5 stars 1,296
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4.2 out of 5 stars 219
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3.9 out of 5 stars 387
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Price | $14.95$14.95 | $14.95$14.95 | $29.99$29.99 | — no data | — no data |
Size (inches) | 3 x 3 | 3 x 3 | 3 x 3 | 3 x 3 | 3 x 3 |
Color | Black | Blue | Pink | Gold | Graphite Gray |
Backlight | ✓ | ✓ | ✓ | ✓ | ✓ |
Temperature | ✓ | ✓ | ✓ | ✓ | ✓ |
Full Calendar | ✓ | ✓ | ✓ | ✓ | ✓ |
Videos
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Product information
Brand | MARATHON |
---|---|
Color | Black |
Style | Digital |
Product Dimensions | 2.75"W x 3"H |
Age Range (Description) | Adult |
Indoor/Outdoor Usage | Indoor |
Theme | Mountain |
Are Batteries Included | Yes |
Mounting Type | Tabletop |
Item Weight | 0.26 Pounds |
Number of Batteries | 2 AA batteries required. (included) |
Alarm Clock | Yes |
Watch Movement | Quartz |
Number of Items | 1 |
Operation Mode | Atomic |
UPC | 063442320273 |
Item Weight | 4.2 ounces |
ASIN | B00J2EE7ZY |
Item model number | CL030036BK |
Batteries | 2 AA batteries required. (included) |
Customer Reviews |
4.2 out of 5 stars |
Best Sellers Rank | #1,004,355 in Home & Kitchen (See Top 100 in Home & Kitchen) #1,537 in Alarm Clocks |
Is Discontinued By Manufacturer | No |
Batteries required | Yes |
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This Item MARATHON Atomic Travel Alarm Clock with Auto Night Light, Black - 12 or 24-Hour Time, Six Time Zones, Indoor Temperature, Date - One AAA Battery Included | Recommendations | |||||
Try again! Added to Cart Add to cart | Try again! Added to Cart Add to cart | Try again! Added to Cart Add to cart | Try again! Added to Cart Add to cart | Try again! Added to Cart Add to cart | ||
Price | Currently unavailable. | $13.99$13.99 | $9.99$9.99 | -23% $16.99$16.99 Typical: $21.99 | $11.95$11.95 | $15.99$15.99 |
Delivery | — | Get it as soon as Friday, Mar 28 | Get it as soon as Friday, Mar 28 | Get it as soon as Friday, Mar 28 | Get it as soon as Friday, Mar 28 | Get it as soon as Friday, Mar 28 |
Customer Ratings | ||||||
Sold By | — | MeesMeek | SUMAI-Life | GEEVON Electronics | ZHC Trading | LeGoing |
material | — | Plastic | Plastic | Acrylonitrile Butadiene Styrene (ABS) | Plastic | Plastic |
shape | — | Rectangular | Square | Rectangular | Rectangular | Square |
mounting type | Tabletop | Tabletop | Tabletop | Tabletop | — | Wall Mount |
operation mode | Atomic | Electrical | Electrical | Atomic, Mechanical | Electrical | Electrical |
signal format | Atomic | Digital | Digital | Digital | Digital | Digital |
style | Digital | Modern | Modern | Modern | Modern | Modern |
watch movement type | Quartz | Manual | LCD | Mechanical | Quartz | Automatic |
alarm clock | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
battery quantity | 2 aa, 2 aaa | 2 aaa | 1 cr2032 | 2 aa | 2 aaa | 3 aaa |
batteries included | ✓ | ✓ | ✓ | ✗ | ✗ | ✓ |
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers find the travel clock functional and easy to use. They appreciate its compact size, nightlight feature, and readability. However, some customers have mixed opinions on its value for money.
AI-generated from the text of customer reviews
Customers appreciate the travel clock. They find it has the right time and date, displays the alarm time, and is never slow or fast. The design of the face is large with a good typeface. It syncs with atomic clock once a day, keeping the time accurate. There is an option for a 24-hour display and the automatic time setting only takes a few minutes.
"...The automatic time setting only took a few minutes (After I found that the auto setup on-off switch was in the OFF position, apparently by default)...." Read more
"...Not a big deal. It keeps great time without the radio signal during short overseas stays. For the price this is a great little travel alarm/clock...." Read more
"...I selected this one because I like the design of the face--the time is large, a good typeface and it also shows the seconds, but small so I won't..." Read more
"...it - pleasant orange night lighting, shows the alarm time set, atomic clock synching (but see below) - but gave it to Goodwill after my first trip..." Read more
Customers appreciate the clock's functionality. They find it works well, has an atomic function, and alarm feature. The clock is easy to operate and is described as a good, simple instrument.
"...This is a good, simple clock. I wanted a battery-operated clock for my nightstand...." Read more
"...Nonetheless, voila, the clock works again...." Read more
"...clock for a few days but it appears to be well built and it functions as advertised...." Read more
"...Just back from a week in SFO and it worked great...." Read more
Customers find the clock easy to set and use. They appreciate the included directions for learning about all features. The compact design makes it easy to set up on its stand at night. The controls are simpler than Marathon's old model CL30035, making it easy to see if the alarm is set and to reach them if needed.
"...The alarm is easy to set using the front panel controls and has a loud alarm volume, unlike many small travel alarms...." Read more
"...Worth reading included directions to learn about all features. Five-minute read and setup. Easy to choose time zone...." Read more
"...When I first got it the automatic atomic time/date setting didn't work...." Read more
"...It's easy to find and use. When I first activated the clock, it didn't get the atomic signal...." Read more
Customers like the compact size of the clock. They say it's easy to set and fits the bill perfectly for travel alarms.
"...The stand folds over the front panel controls and makes the clock quite compact, but leaves the display exposed for viewing...." Read more
"Small size, easy to see in the dark if auto night mode is switched on. Worth reading included directions to learn about all features...." Read more
"...This satisfies my requirements: small, battery operated (so my alarm will work if there is a power outage), atomic clock (so I don't have to set it)..." Read more
"...Compact size makes it great for travel. Instructions were clear and, for the most part, unnecessary...." Read more
Customers appreciate the clock's brightness. They like the night light feature, which stays softly backlit throughout the night so they can read the time in darkness. The backlight is pleasantly uniform, and it comes on automatically. The backlight can be turned on or off, and it uses two AAA batteries (included).
"...The snooze/ light button still operates, so if the dim display is bright enough to be objectionable you can turn it off and use the light button to..." Read more
"Small size, easy to see in the dark if auto night mode is switched on. Worth reading included directions to learn about all features...." Read more
"Jan 2017: I liked 3 things about it - pleasant orange night lighting, shows the alarm time set, atomic clock synching (but see below) - but gave it..." Read more
"...The important thing for me was that it have a bit of a backlight during the night, even without having to press a button, so that I can just turn..." Read more
Customers find the clock easy to read. They appreciate the large display and clear numbers. The face is easy to set, with a good typeface and a clear front panel for setting functions.
"Small size, easy to see in the dark if auto night mode is switched on. Worth reading included directions to learn about all features...." Read more
"...one because I like the design of the face--the time is large, a good typeface and it also shows the seconds, but small so I won't confuse them with..." Read more
"...easy to set and has the temperature, date and the readout is large enough to see from a distance...." Read more
"...panel controls and makes the clock quite compact, but leaves the display exposed for viewing...." Read more
Customers appreciate the clock's sturdy construction and reliable operation. They find it simple to set up and use, with a quiet operation and good battery life. The compact design and easy-to-read display make it suitable for nightstands.
"...All in all, this clock appears to be a well designed and manufactured product at a reasonable price." Read more
"...it's slightly recessed with the cover closed and seemed to hold up just fine...." Read more
"I have mixed feelings about this clock. Quality seems fine, features seem to work well, and the size is good for travel...." Read more
"...Pro: * Very well made, sturdy but not heavy, nice design aesthetically. * Easy to set the alarm. * Good display, easy to read. *..." Read more
Customers have different views on the clock's value for money. Some find it user-friendly and inexpensive, suitable for travel. Others consider it overpriced, with a constant nightlight and poor manual.
"...clock appears to be a well designed and manufactured product at a reasonable price." Read more
"...is no AC adapter, so the clock is battery-only, also the price is a little bit high, although overall, you get a good product." Read more
"...All the other features make it a good value for travel at the sale price I paid." Read more
"...This is a WIN! Yes! Well worth the 20 bucks! It even came with batteries...." Read more
Reviews with images

Fantastic travel alarm
Top reviews from the United States
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- Reviewed in the United States on May 4, 2016My wife was looking for a new travel alarm because her existing one had a small, hard to read, display.
This Marathon clock has a photocell controlled backlight that comes on at a dimmed level automatically when the room is dark. It seems bright enough to read the time. It also has a snooze/light button above the display that illuminates the clock at higher brightness level.
I was worried that the automatic light feature would run down the batteries when the clock was stored between trips, but a switch in the battery compartment allows you to turn off the automatic feature. The snooze/ light button still operates, so if the dim display is bright enough to be objectionable you can turn it off and use the light button to check the time.
The automatic time setting only took a few minutes (After I found that the auto setup on-off switch was in the OFF position, apparently by default). Setting the Time Zone and enabling/disabling DST was easy to do by following the instructions provided , once you locate the small icons on the display. I did not need to use the manual time setting procedure, but the documentation looks straightforward.
The alarm is easy to set using the front panel controls and has a loud alarm volume, unlike many small travel alarms.
The stand folds over the front panel controls and makes the clock quite compact, but leaves the display exposed for viewing. Whether a closed case would be more valuable as a protection for the display only time will tell.
The temperature display is a nice feature and helps resolve arguments as to whether the hotel room is too warm or too cold.
All in all, this clock appears to be a well designed and manufactured product at a reasonable price.
- Reviewed in the United States on January 10, 2023Small size, easy to see in the dark if auto night mode is switched on. Worth reading included directions to learn about all features. Five-minute read and setup. Easy to choose time zone. If traveling from the States you will have to manually adjust the time to local time and turn radio receiver off. Not a big deal. It keeps great time without the radio signal during short overseas stays. For the price this is a great little travel alarm/clock. Two minor issues: 1) reception is not real good. I live in Minnesota. I had a similar item for 15+ years that picked up the signal better. But, just find a location in your home to pick up the signal. I placed it by a window. That worked! 2) at certain angles it is difficult to read. Just move your head up or down, adjust the angle of the clock on its stand or pick the thing up. Again, for the money, NO BIG DEAL! I recommend this clock.
- Reviewed in the United States on April 21, 2017(To set the time manually, pls scroll):
This year I waited a day after daylight savings ended and noticed the time had not re-set (despite it being in the window, facing where the signal comes from with the atomic clock setting on). So I decided to re-set it manually. I pressed "re-set" and the close decided it was 2am, January 31 and a Wednesday.
I'd misplaced the manual, so I thought I'd try just pressing the clock icon, but didn't notice anything (I expected the time to flash). So, I took out the batteries hoping it would cause a re-set, this caused the clock to emit a loud, short cheep, but when I replaced the batteries it was still January 31, 2am. The third time I replaced the batteries, the screen stayed blank, so I had to get new batteries.
Fortunately, someone here posted instructions on re-setting the clock (see the Q&A). Here are my instructions:
TO SET THE TIME MANUALLY:
Press and hold the little Clock icon Button. This will cause the Time Zone type (extremely teeny letters in the upper right corner, next to the time) to blink. It is VERY hard to notice this. You can choose other time zones using the up/down arrows or leave it on that one. Pressing the clock icon again will let you move on to the next setting.
You can bypass the other settings and exit the Time-Set Mode immediately by pressing and holding the Clock button.
For the second setting (after the Time Zone setting), the large numbers start to flash, but as a 4-digit number. If you hit the up/down arrows, the number changes, but at the same time so does the day of the week (which is displayed underneath in smaller type). Later on, I realized that this 4-digit number was for the year. If you want the correct day of the week to display, then you need to have the correct year. If you need to change the year, push the up/down buttons.
As you press the Clock button, the Settings are in this order:
- Time Zone (see tiny type in upper right corner)
- Year (4-digit number in large type)--this also controls day of the week
- Month, then Day
- Format (12 v 24 hour)
- Hour, then Minute, then Second
- Language (choose GB for English)
- DST (to turn Daylight Savings on/off)
I keep forgetting how to set the time, so I wrote instructions on a thin scrap of paper and slipped it into the battery compartment.
(My original review:)
This is a good, simple clock. I wanted a battery-operated clock for my nightstand. This satisfies my requirements: small, battery operated (so my alarm will work if there is a power outage), atomic clock (so I don't have to set it), with a digital display. I selected this one because I like the design of the face--the time is large, a good typeface and it also shows the seconds, but small so I won't confuse them with the minutes. I like that it shows the date and the day of the week, along with the temperature. You can choose between Celcius and Fahrenheit. It also shows the time zone and whether Daylight Savings Time is activated.
It is very easy to tell if the alarm is set. There is a switch in the middle that when switched to ON, it reveals a red square (very noticeable against the black clock). There is also a little bell graphic that appears above the seconds. If the alarm is on then the time that it is set to is displayed on the face of the clock INSTEAD of the date. It also shows whether the alarm is set to AM or PM. This is okay, but I wish that it would allow you to toggle to the date or allow you to choose whether you want the date or alarm displayed--but not a big deal. When the alarm is triggered, the beeps start off soft and slow and then the beeps come a little faster and a tiny bit louder and continue for about a minute. It's loud enough for me, but a sound sleeper might prefer something louder. There is a snooze button.
The face of the clock has a nightlight feature--it dimly lights up when the room is dark. I like that you can turn this off (I did to conserve battery, but I can foresee instances when I might want it on). There is a button you can push that lights the face for several seconds. It's easy to find and use.
When I first activated the clock, it didn't get the atomic signal. This is not a big deal, we have other atomic devices and they have trouble too (we are very far north, near Seattle). They get the signal eventually, so I wasn't worried. I set the time/date manually (easy to do) and then told the clock to look for the atomic signal (there are some buttons you can push by the battery). When I manually set the time on the clock, I deliberately set an incorrect time so I could later tell when it had been synched. When I checked a few hours later the time was correct (I was surprised that it did it so fast, I thought it would need to wait till nightfall). The only problem was that the day of the week was odd. Customer Service had already emailed me to ask how I liked the clock, so I emailed them back to ask about it. They got back to me quickly and that was how I found out that the clock is available in different languages. (It says so in the instructions, but I hadn't noticed). So the day of the week was in some other language.
Changing the language is easy (press and hold the button that looks a clock for 3 seconds. First you will see the time zone flashing. Next, press the clock button 9 more times until you see the language setting flashing. Use the up/down arrow buttons to switch between languages.) The code for English is GB (I assume for Great Britain?). Then I just needed to push the Clock button a few more times to exit the Setting mode.
So far the clock has been great and I'm happy with it.
I originally gave this 5 stars, but downgraded it to 4 because I usually have to re-set the time manually.
- Reviewed in the United States on October 15, 2024I have two of these clocks and love them, and the battery lasts a long time: two years for the latest clock I purchased, which came with its own battery. But when it stopped a few days ago and I opened the cover to replace the battery, I found a great deal of white corrosion in the case, on the battery itself, and on the springs. I figured the clock was ruined, but with a great deal of time and effort I was able to remove most of the corrosion, but not all. Nonetheless, voila, the clock works again. I highly recommend the clock, but I suggest that if you purchase this clock, you throw away the off-brand battery that comes with it and use a good quality battery such as Duracell.
Top reviews from other countries
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Luis BautistaReviewed in Mexico on September 3, 2020
4.0 out of 5 stars Buen producto.
El reloj tarda más de un dia en actualizarse solo, por lo que es importante esperar dia y medio para que lo haga. Si eres una persona sencilla este reloj te va a gustar, tiene unicamente lo necesario. Solo tiene una alarma y el volumen no es alta ni bajo, te despierta sin causar molestia. Es ideal para que puedas ver la hora durante la noche sin la necesidad de tener tu celular encendido toda la noche para ver la hora y que puedas tirarlo por accidente.
- kthargReviewed in Canada on February 28, 2019
5.0 out of 5 stars Good Travel Clock
Bought this clock to replace an older Marathon product. The clock itself is sturdy, simple to use, easy to set and visible alarm switch rather than an LCD dot and the alarm is loud enough to wake me approx twice as loud as my old clock. Nightlight feature is great when your in a dark unfamiliar hotel room and don't know the time or where the clock is. You can also run the clock in manual time mode to avoid it auto updating time zones if you don't want the zone to auto switch.
I was a little disappointed the flip cover/stand was a little flimsy to open and close and no clear plastic window to protect the clock face from scratching/breaking when the cover is closed in your bag. No dual alarm as was described. You have to open the battery door to turn off the nightlight feature. Snooze is limited to just 4 times at 5 minutes each and then the alarm shuts off completely.
One person found this helpfulReport - fahzaReviewed in Canada on April 26, 2022
4.0 out of 5 stars Good Well Lit Travel Clock
I purchased the clock solely to use for travel. The biggest plus is that is stays dimly lit at night, exactly what I was looking for. I can always see the time without pushing any buttons. The only downside is that is must be positioned correctly to see the time but not a big deal for me. Didn’t use the atomic clock feature. Very happy with the purchase.
- Tony MReviewed in Canada on May 23, 2022
5.0 out of 5 stars A very good clock for my side table
I had had this clock for only one day and have found it to be exactly as advertised. I manually set the time at around 2:30 P.M Checked the time against my atomic watch and the time was off a few minutes. Left it and hoped that at 2:00 A.M it would set itself. Well, next morning checked the time against the atomic watch and they were both showing the same time to the second. I also like the back-light feature. Very please with my purchase. Hopefully it will continue to function flawlessly.
- BlankyReviewed in Canada on December 12, 2022
1.0 out of 5 stars Wouldn’t set
I have to return the item as the time wouldn’t set. I am sure it’s not well built, as I have another atomic clock that sets instantly. This one isn’t good. I left it in a window to see if it would set. 24hrs later and it was still the wrong time.