AtomicClock: NTP Time

Precision Clock, UTC Reference

Free · In-App Purchases · Designed for iPad. Not verified for macOS.

Check precise NTP reference time at a glance. AtomicClock helps you set watches, wall clocks, cameras, and other devices, compare local time with UTC, and follow moments when every second matters. Clear analog and digital time AtomicClock displays current time from NTP servers that reference atomic clocks. Choose a predefined server or add your own, then view local or UTC time in a clean analog or digital clock. Customize your reference clock • Switch between 12-hour and 24-hour time • Customize the time format • Choose from multiple clock faces and hands • Use a smooth, fluid second hand • Add acoustic ticking or the Greenwich Time Signal • Tap the screen to hide information and controls, freeze the display, or mute ticking Details for precise time checks View technical NTP information, including round-trip time and server stratum. Whether you are checking a timestamp, preparing a camera, aligning a wall clock, or setting a watch by hand, the seconds remain clear and easy to follow. AtomicClock is free to use. AtomicClock Pro is available as a one-time purchase with no subscription. It unlocks your preferred clock face, hands, and font, removes ads, and includes upcoming Pro features. AtomicClock displays NTP reference time for comparison and does not change your device’s system time. Results can vary with the selected server, network conditions, and device behavior.

Ratings & Reviews

  • This app has not received enough ratings or reviews to display an overview.

• Improved app reliability and compatibility with latest platform components • General performance and stability improvements

Version 3.6.24

The developer, Timo Partl, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Identifiers

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Location
    • Identifiers
    • Usage Data
    • Diagnostics

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Diagnostics

Privacy practices may vary based, for example, on the features you use or your age. Learn More

The developer indicated that this app supports the following accessibility features. Learn More

  • Supported Features

    • VoiceOver

    • Larger Text

    • Dark Interface

    • Differentiate Without Colour Alone

    • Sufficient Contrast

    • Reduced Motion

Information

Provider
  • Timo Partl
Size
  • 17.9 MB
Category
  • Utilities
Compatibility
Requires iOS 15.0 or later.
  • iPhone
    Requires iOS 15.0 or later.
  • iPad
    Requires iPadOS 15.0 or later.
  • iPod touch
    Requires iOS 15.0 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
Languages
English and 26 more
  • English, Albanian, Arabic, Bulgarian, Czech, Danish, Dutch, French, German, Hebrew, Hungarian, Indonesian, Italian, Japanese, Korean, Lithuanian, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Spanish, Swedish, Traditional Chinese, Turkish, Ukrainian, Vietnamese
Age Rating
4+
In-App Purchases
Yes
Copyright
  • © 2013-2026 Timo Partl
  • Developer Website
  • Privacy Policy

    • More by Timo Partl

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