Live device clock

Clock with seconds

Current local time

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Device time · not synchronized to a time server

Quick guide · What each button does
Living Clock · Lantern Isle
The sky, sun and moon follow your device’s 24-hour day. The promenade has 60 lanterns: one lights up each minute. A little ferry completes its harbor circuit every minute, showing the seconds. A quiet ripple marks the hour. Explore a day previews another time for 20 seconds. Sunrise, sunset and moon shape are artistic, not astronomical predictions.
Keep screen awake
Prevents the screen from automatically turning off while you are viewing this page. Useful as a desk clock. Press again to release it. Switching tabs or locking your device may release it, so check the enabled state when you return. Shown only in supported browsers.
Fullscreen
Hides menus and surrounding content so the clock fills your screen. Useful for presentations or viewing from a distance. Use Exit fullscreen or press Esc to return. Enable Keep screen awake separately if needed.
Seconds · Milliseconds
Show or hide seconds. Milliseconds adds three decimal places, down to 0.001 seconds. This adds display detail; it does not improve the accuracy of your device clock.
12h · 24h
Switch between 12-hour time with AM/PM and 24-hour time from 00 to 23.
Analog
Shows a clock face with hour, minute and second hands below the digital time. Press again to hide it.

Read your device time at a glance, or enter Living Clock: a little island where the sky follows the hour, lanterns count the minutes, and a ferry traces the seconds.

About this clock

The display is calculated from your device clock on every update, so a delayed browser frame does not make it drift. It follows your device settings; if that clock is wrong, this display is too.

Display options

Turn seconds or milliseconds on, switch between 12- and 24-hour time, show an analog face, or enter fullscreen. Wake lock is offered only where the browser supports it and only after you enable it.