Is your phone's clock really right? Atomic Clock shows you the exact time, synchronized with internet time servers, and tells you how many milliseconds your phone is off.
Use it to catch the start of a ticket sale or a limited drop, to bid at the last second, to set your watch, or to count down to midnight on New Year's Eve. Or simply as a beautiful clock on your desk or nightstand.
EXACT
• Synchronized with time servers that follow atomic clocks
• Several measurements per sync, the most precise one wins
• Shows the accuracy of each sync, e.g. "±8 ms"
• Compensates the delay of your screen
• Keeps counting exactly between syncs, even if the phone's clock is changed
BEAUTIFUL
• Digital or analog, with 10 dials, including a railway station clock
• Over 20 fonts, including a classic 7-segment display
• Your own colors for digits, background and hands
• Glowing digits, blinking colons, a second hand that ticks or sweeps
AUDIBLE
• A tick every second
• Time signal like on the radio: beeps from second 55, long beep on the full minute
• Spoken time or a chime every few seconds or minutes
MADE FOR ALWAYS ON
• Screen stays on while the clock is open
• Burn-in protection gently moves the display
• One tap hides everything but the clock
• Portrait, landscape, any time zone, dark or light
Needs an internet connection to synchronize. No account, no setup: open it and see the exact time.
Latest Version
4.0Uploaded by
Mýõ Gýî Pyapon
Requires Android
Android 6.0+
Category
Free Tools AppContent Rating
Everyone
Report
Flag as inappropriateLast updated on Oct 18, 2026
• Analog clock: 10 dials, 5 second-hand motions incl. a railway station clock, hand colors of your own
• Over 20 clock fonts incl. a 7-segment display, with weight and italic
• Any digit and background color, glowing digits, blinking colons
• New precision: tenths of a second
• Time reminder: spoken time or a sound at a fixed interval
• Sound dialog right on the clock
• More accurate sync, display latency compensated
• Stability improvements
