AtomicClock: NTP Time
Contains adsIn-app purchases
4.6star
16.9K reviewsinfo
500K+
Downloads
PEGI 3
info
About this app
Ever wanted to know exact current time to celebrate someone's birthday or New Year's Eve? Or simply to synchronize clocks? AtomicClock provides the accurate time from NTP servers which are getting the time directly from atomic clocks!
• current precise time in correct time format
• analog & digital clock
• choose from different time servers or add own ones
• customizable widget with time & date
• acoustic ticking & fluid second hand
• choose between different clock faces
• switch between local time and UTC, 24-hour and 12-hour clock
• sync your physical watches & clocks
• technical info like round trip time or stratum
• Greenwich Time Signal
AtomicClock: The most accurate time on Android.
• current precise time in correct time format
• analog & digital clock
• choose from different time servers or add own ones
• customizable widget with time & date
• acoustic ticking & fluid second hand
• choose between different clock faces
• switch between local time and UTC, 24-hour and 12-hour clock
• sync your physical watches & clocks
• technical info like round trip time or stratum
• Greenwich Time Signal
AtomicClock: The most accurate time on Android.
Updated on
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Ratings and reviews
4.6
15.6K reviews
John McSherry
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5 July 2025
it's a good app. I pay for a full version. I have an old school Casio watch. I like to sync my watch to the second. the display is clean and plan. You don't need an atomic watch. quartz is very accurate as long as you synchronise it.
Timo Partl
5 July 2025
Glad you’re enjoying the app and using it to keep your Casio synced up! Thanks for the support and your feedback on the display.
Zangshod
- Flag inappropriate
9 July 2025
no way to restore previous purchase, thus watch data is lost. otherwise perfect.
Timo Partl
10 July 2025
Can you please clarify what you mean? The Pro version should restore automatically. What watch data are you referring to that can get lost? I'm happy to help
Bill Kinsman
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- Show review history
10 April 2025
Still is a good app. Even though the pro version is affordable. I really don't need it because I have a GPS watch. I can't bad-mouth the developer for trying to make a living. The Google ads are enough to get you to stop using the free version for sure.
1 person found this review helpful
Timo Partl
10 April 2025
Sorry about that. You can easily collapse the ad using the arrow button, then it will stay minimized. If you don't want any ads, you can get rid of them permanently by getting the pro version for the price of a coffee.
I'm an independent, solo app developer trying to make a living, is my app so bad...? 😞
What's new
- Improved size calculation logic for widget
- Updated dependencies
- Built for Android 16
- Updated dependencies
- Built for Android 16
App support
About the developer
