MARATHON Slim Jumbo Atomic Wall Clock, Walnut Finish - Large, 15-Inch Display - Alarm, AM/PM or 24-Hour Time, Eight Time Zones, Indoor Temperature & Humidity - Four AA Batteries Included

Don't panic if it doesn't pick up a signal right away! I read the fine print carefully, and it says to allow 24 hours for it to find a signal... So I left it over night, and by the morning it had picked up the signal! Mind you, one thing to note: - it automatically came on with "Daylight Savings Time" mode on, and was an hour ahead. So, I had to get my tech-savvy daughter to help me change this mode. The instructions for changing the MODE are not very clear. If yours comes on with "Daylight Savings Time", (and is an hour wrong), do not change the time - just change the MODE - i.e. toggle OFF the "Daylight Savings Time". As soon as you toggle it off, the time will correct itself! So, once you get over the initial hurdles of setting it up, it's a great clock! Looks very nice on the wall, nice walnut frame, super large numbers make it easy to read from a distance, and I love seeing the temp and humidity. One other thing to note - it doesn't light up at night, so unless you have a light on in the room, you won't see it in the dark. (One teeny disappointing thing, but it's not a big deal). Over all, very satisfied with this unique clock!

I was looking for a large LCD clock and found this one. Set up is a little complicated, but when you finish, it works fine in the end! It will automaticly synchronize with the Colorado Atomic Clock. Don't panic if it doesn't pick up a signal right away, it may take up to 48 hours. After that you will need only change batteries (they have really long work time) and press MODE button twice a year to change Date Savings Time. It looks very nice on the wall, nice walnut frame, super large numbers make it easy to read from across the room, and I love seeing the temperature and humidity. I bought this clock 4 years ago and it still woks fine. Over all, very satisfied this this great clock!

This is my second purchase of a Marathon atomic clock and I have no regrets. Set up was a breeze. Just put in the batteries and hung it on the wall. Located near a window in my semi-below ground garage, this clock synced with the atomic clock in Fort Collins, CO in under 10 minutes. Display is huge allowing me to see time, date, temp, and humidity even through dusty safety googles.

Great clock with big digits. It’s easy to read from far away. My only wish is that there were someway to illuminate this l, when desires, so you could see the time in the dark. Otherwise it works great! I love that it automatically sets the time based on your location/time zone.

Pros---Great looking, nice and big and great once set up. Cons--I am used to manually setting up atomic clocks but this one was tough. Set the whole thing up to find the DST was on and I am in Az so want off as a result I had to reset everything as I hit wrong buttons. Getting the 24/12 hr thing wasn't as easy as any of my other clocks either. Really had a rough time as I bought 2 of these to replace old radio shack ones that finally bit the dust so wasn't fun My advise is don't let the set up scare ya as eventually it would correct itself but they still could of made a few steps easier as my other ones are a bit quicker to set up.

Received on 9/15/17 Had to test this clock for a while and sure enough set itself! But last night had a fan on all night, about 3ft. below clock! As I am quite familiar with reception issues with these Atomic clocks I new that it most likely would not set itself. Other clocks I have show the receive indicator for a few days before it turns off after no signal for that time period. As I had wanted, the signal indicator was off with DST and on when it received an update. That way you know that it was not updated! If I want to improve reception the fan will be off. I can not really see a need for any larger time digits than these...they are big! If you need a super large display you could use a computer with or tablet w/app and MHL/HDMI connected input. Do they make a 100 foot screen? All that sillyness, anyway, the humidity seems to show 3% high... or my other humidity gauges are 3% low! Not that I will need to use the alarm...it is loud! Can they not put a volume control in! I have modified many clocks to reduce the level! Some I never even use the alarm after but it is less noisy when setting up! Not a big issue w/this one! Temp reading is close to my other devices! Can't speak for battery life. I think MARATHON claims about 8 months. Oh! One last thing! This was used - very good condition item! Could not find anything wrong...it is indeed in very good condition! It was shipped in another box and packaged well! Would buy another for that price! Only $20.00 Now where is my 6 volt AC adapter...have to try a USB 5 volt...that might work too! GREAT CLOCK! THANKS MARATHON and AMAZON 6/24/18 just an update still working great...and it does update almost everyday even w/fan on. LOVE IT! 9/30/19 Update just checked and found that the the batteries were replace on 9/15/2018! Still do not use the alarm but looks like good battery life. If I modifiy and use an AC adapter I guess I would not have to replace batteries in maybe 5 or 10 years! That would be Super! LOVE THIS CLOCK MARATHON! Note: This review has been edit again to make more sense. Best of luck everyone!!! 3/06/2023 Happened to find this old review and had to add more. Good battery life so never DYI to AC power yet. The clock had been running a little fast if no update. So I modified and added a trimmer capacitor. Was able to get excellent accuracy over time and adjustment. Great because I moved and the location in the living room is terrible for receiving any updates on any device. DST this weekend so may have to set myself. Still working great!!! Just ordered a similar clock on Amazon but that has temp and humidity for both inside and outside. Hope that works just as good. Will review it soon!!! Thanks again AMAZON!

This was one of my best buys! We put it in our kitchen above a door where we only had a height opening of 12 inches but no length restrictions. So rectangular was the way to go. It’s on the same wall as the mounted TV….and the clock echoes the black and size of the TV. In our newly renovated kitchen, it’s one of the first things that people comment on. Love the huge letters, the date, the temp and the humidity. It was 4 X cost of other clocks, but sleek is better than folksy. Only negative, and it wasn’T that important to us, is that my husband who is very technical, could not get it connected to the world clock. Love it!

Pros: - Large and high contrast display - Temperature, humidity and date info included - Automatic synchronization to the atomic clock standard in Colorado Cons: - Temperature sensor is very sensitive to direct sunlight, but that is to be expected Summary: You cannot go wrong with this clock. It is always showing the precise time and it is very easily readable even at a distance.

es muy funcional, tal como lo anunciaron

The item arrived promptly and as described

Not for Australia Atom keeps appearing. Can’t turn it off Time lost