Atomic Clock – Precision Time
NTP Time & Milliseconds
Only for iPhone
Free · In-App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Precise NTP-synced time with milliseconds, UTC, latency, offset, auto sync, custom colors, night mode, and six clock styles.
Atomic Clock – Precision Time is a professional precision clock and NTP time synchronization utility for anyone who needs highly accurate time directly on their device.
Use reliable network time synchronization to view precise time with millisecond-level detail. Compare your device clock with network time, check sync offset and latency, switch between local time and UTC, and keep the screen on when you need a stable reference clock.
Key features:
• NTP-based time synchronization
• Millisecond or 1/60-second detail
• Local time and UTC display
• Device offset and network latency indicators
• Automatic sync with configurable intervals
• Six clock styles: circular dots, analog, minimalist, binary, neon glow, and flip clock
• Custom accent colors and multi-color display
• Night mode and keep-screen-on option
• Privacy-focused: no account, no analytics, no tracking
Atomic Clock – Precision Time is built for precise timing, clock drift checks, latency awareness, and a clean daily precision clock.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Updated multilingual App Store metadata and improved wording around precision time, NTP synchronization, display styles, and privacy.
The developer, 家宝 戴, 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 Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 家宝 戴
- Size
- 9 MB
- Category
- Productivity
- Compatibility
Requires iOS 17.6 or later.
- iPhone
Requires iOS 17.6 or later. - Mac
Requires macOS 14.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.3 or later.
- iPhone
- Languages
English and 10 more
- English, Arabic, French, German, Italian, Japanese, Korean, Portuguese, Simplified Chinese, Spanish, Traditional Chinese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- AtomicClock Pro Monthly $24.99
- AtomicClock Pro Monthly $7.99
- Copyright
- © 2025 JiaBao Dai. All rights reserved.