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Android Apps > Tools > Atomic Time - NTP Clock Sync
Atomic Time - NTP Clock Sync icon

Atomic Time - NTP Clock Sync

by Thomas Wiegold · Tools · Free
On Google Play since March 2021 · Data updated 2026-10-25
Google Play

Atomic Time - NTP Clock Sync is made and published by Thomas Wiegold. AppBrain is an independent app data site and isn't affiliated with Thomas Wiegold. The app name, icon, screenshots and description belong to Thomas Wiegold and are shown as published on Google Play.

AppBrain's verdict

EstablishedLoved by users
Rating on Google Play
4.84
4,673 ratings
Installs
190 thousand
Last updated
August 12, 2025
Ads
No ads
Size
965.8 KB

Atomic Time - NTP Clock Sync has 190 thousand installs. Users love it: 4.8 stars from 4,673 ratings.

Summary

Atomic Time - NTP Clock Sync delivers highly accurate time by syncing with global NTP servers, paired with a crisp minimalist analog display and a precise digital clock. With 100,000+ total downloads and 2.9K in the last 30 days, it’s a trusted reference for professionals and enthusiasts who value speed, clarity, and reliability.

Pros & Cons

  • Global, reliable time via NTP synchronization.
  • Minimalist, readable UI with both analog and digital clocks.
  • Lightweight and fast with low resource usage.
  • Rich customization: themes and second-hand animation options.
  • Lacks home-screen widgets or watch-face integrations that some competitors offer.
  • No weather or calendar widgets/features in-app.

User feedback

Ratings and reviews on Google Play

Comments on Atomic Time - NTP Clock Sync for Android

★★★★★ Andres Lobo · Jun 23, 2026
Simple and elegant. Thanks for making this App. Perfect for syncing my watches and clocks to atomic accurate time :)
★★★★★ Craig Scatola · Sep 19, 2026
Perfect! Always works, is super accurate and does not contain ads.
★★★★★ Keith · Jul 12, 2026
Great app for setting the correct time on your analog clock
★★☆☆☆ Емилиян Николов · Aug 5, 2026
Lies that it syncs to the custom server. I wanted to use it to diagnose a custom NTP server, but it doesn't seem to sync with it at all. Instead, it takes time from whatever public server it decides and insists it is the time from the custom server.

Google Play Rating history and histogram

4.3K
250
0
0
130

Store listing

By Thomas Wiegold, from Google Play

“Get the most accurate time with this NTP server synchronized atomic clock.”

Atomic Time - NTP Clock Sync Screenshot 1 of 6
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Atomic Time - NTP Clock Sync Screenshot 3 of 6
Atomic Time - NTP Clock Sync Screenshot 4 of 6
Atomic Time - NTP Clock Sync Screenshot 5 of 6
Atomic Time - NTP Clock Sync Screenshot 6 of 6
Screenshots by Thomas Wiegold, from the Google Play listing
Description by Thomas Wiegold Written by the developer, not by AppBrain. Click to read.
Step into the world of unparalleled accuracy with Atomic Time, the premier clock app. It redefines the standard for timekeeping by providing users with the most accurate time, meticulously synchronized with global NTP servers. Witness the essence of time through our elegantly minimalist analog display, beautifully paired with a crystal-clear digital clock beneath.

Especially valuable for enthusiasts and professionals alike, Atomic Time serves as a trusted reference for checking the accuracy of watches and setting them to the precise second. Crafted for simplicity and readability, this app is the definitive choice for anyone who values precision and style.

- Elegant Design: Enjoy a minimalist graphical analog clock along with a digital display, crafted for optimum clarity and aesthetic appeal.

- Customizable Themes: Personalize your clock with multiple color schemes such as Light, Dark, and Black (optimized for OLED displays). Dive into a world of color with variations like Warm Blaze, Pink Candy, and Bluebird to match your mood or decor.

- Time Server Selection: Choose from a wide array of time servers to sync with, ensuring you always have the fastest and most reliable connection.

- Sound & Display Settings: Customize your app with options to turn sound on or off, keep the display active, and select your preferred second hand animation – tick or sweep.

- Lightweight & Fast: Atomic Time is designed to be both fast and light, ensuring minimal impact on your device’s performance.

Recent changes:
- fixed layout crop
- fixed large offset display
Official page on Google Play

Safety and technology

Found in the app by AppBrain
Ads
No ads
Price
Free
Libraries
10
App size
965.8 KB
Needs Android
5.0+
Content rating
Everyone

Technologies used by Atomic Time - NTP Clock Sync

3 permissions · 10 libraries
Subscribe to see full permission and library details
Trust & Safety: Permissions required are typical for a time-sync app: INTERNET for network time synchronization and READ_EXTERNAL_STORAGE; DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION indicates a non-exported dynamic receiver, reducing exposure to other apps. Overall, permissions align with core functionality and pose minimal risk.

Releases

Updates seen on Google Play
Version
1.10.2
Launched
March 2021
  • Aug 12, 2025UpdateVersion 1.10.2
  • Oct 20, 2024Installs100,000+ installs
  • Aug 10, 2024UpdateVersion 1.9.0
  • Jul 26, 2024UpdateVersion 1.8.0
  • Jul 2, 2023Installs50,000+ installs
Show all changes Show fewer

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Installs

Tracked by AppBrain
Last 30 days
2.9 thousand
Per day
97
30-day average
Play install range
100+ thousand
Launched
March 2021

Installs over time

Atomic Time - NTP Clock Sync has been installed 190 thousand times. Over the past 30 days, it averaged 97 installs per day.

Rankings

Google Play top charts

Google Play Rankings for Atomic Time - NTP Clock Sync

This app is not ranked

About the app and developer

About Atomic Time - NTP Clock Sync

Atomic Time - NTP Clock Sync is a tools app developed by Thomas Wiegold.

Install Statistics

Atomic Time - NTP Clock Sync has been installed 190 thousand times. In the last 30 days, the app was installed 2.9 thousand times.

User Ratings

Atomic Time - NTP Clock Sync is rated 4.84 out of 5 stars. The rating is based on 4.7 thousand ratings.

App Information

Atomic Time - NTP Clock Sync is freely available from Google Play. The app size is 965.80 kB. The latest version available is 1.10.2. The last update was on August 12, 2025.

Technical Requirements

Atomic Time - NTP Clock Sync requires Android 5.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play since March 2021.

App Performance Report

Get a detailed PDF report for Atomic Time - NTP Clock Sync with download trends, rating history, and key performance statistics — useful for competitive research or tracking your own app. Learn more

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Developer information for Thomas Wiegold

Thomas Wiegold

contact@atomictime.app

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Share Atomic Time - NTP Clock Sync

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