Online Clock
Display the current time in a full-screen digital format with time zone support.
Online Clock
Display the current time in a full-screen digital format with time zone support.
About the online clock
Initial server time sync
On load, the clock sends one HEAD request to the current page, reads the server Date header, and compensates for half of the round-trip latency. After that sample, the display advances every second with a local timer plus the measured offset.
Time-zone aware display
The selector includes local time, UTC, and common IANA time zones such as New York, London, Taipei, Tokyo, Sydney, and Auckland. The analog clock, digital time, date, weekday, and UTC offset all update to the selected zone.
Full-screen presentation use
On desktop, the full-screen control centers and enlarges the clock for projectors, shared displays, classrooms, and meeting rooms. The page does not store time-zone activity; aside from the initial sync request, display and conversion happen in the browser.
FAQ
Common questions and answers about this topic.
Is this online clock accurate?
When the page loads, the clock syncs with the server time and compensates for network latency, so it stays close to the standard time even if your computer's own clock is off. After syncing, it updates every second using a local timer.
Can it show the time in other countries or time zones?
Yes. Use the time zone selector above to switch to UTC, Tokyo, New York, London and other common zones. The clock face, digital time and date all update to that zone.
Is my time or time-zone activity uploaded anywhere?
No. Apart from a single request to the server on load to sync the current time, all display and time-zone conversion happens inside your browser. No usage data is stored or uploaded.
Can I make it full screen for a meeting room or classroom clock?
Yes. On desktop there is a full-screen button at the top-right; clicking it centers and enlarges the clock, ideal for projectors, meeting rooms or classrooms. Press it again or Esc to exit.