AtomicClock: NTP Time

Name: AtomicClock: NTP Time
Availability: InStock
Rating: 4.746479034423828 (17415 reviews)
Author: Timo Partl

Timo Partl

Contains adsIn-app purchases

4.7

17.4K reviews

500K+

Downloads

USK: All ages

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.

Updated on

17 Oct 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region and age. The developer provided this information and may update it over time.

This app may share these data types with third parties

Location, App activity and 2 others

This app may collect these data types

Location, App activity and 2 others

Data is encrypted in transit

Data can’t be deleted

Ratings and reviews

4.7

16.1K reviews

Kenagain

31 October 2025

Had the free version for a long time and decided to get the paid for version. Found that the paid for one says you can change fonts and font colours, but they don't work as they should. I tried changing the colour to red and it stayed white but changed the font on the widget. If it gets sorted will give it 5 stars.

1 person found this review helpful

Timo Partl

31 October 2025

The widget settings apply on the wiget and the main settings apply on the main app. That still works perfectly fine in my tests. Can you please double check or write me a mail with more info?

Erik Janssens

11 October 2025

Worked fine for a while, but in recent years hasn't. No matter how many time I chose UTC in the settings, it will always display local time in the widget. If I want to see the time I selected, I have to open the full app. No time won there, pun not intended. Keeps time perfectly fine, much better than what the cell network does. Doesn't seem to be supported anymore; which is a pain, given I paid for a license.

1 person found this review helpful

Timo Partl

11 October 2025

You can absolutely configure what time zone is shown in the widget. You can set it up while creating the widget. Can you write me a mail with more details on this problem?

Vadym Poplavskyi

19 October 2025

The app has a solid functional foundation, but the aggressive advertising policy and moving previously free features (like picture-in-picture mode) to the paid version feels too pushy.

Timo Partl

19 October 2025

Sorry you aren't happy with the app. The PiP feature always was meant to be a pro feature, but there was a bug that made it available for everyone, and I fixed this many months ago. The free app contains ads, the paid doesn't. I think that's a fair model that many other apps follow. Can you suggest what I could improve?