Fullscreen Digital Clock
A large digital clock for meeting rooms, classrooms and landscape phones, with seconds, date, weekday, theme and Wake Lock controls.
About this tool
A large digital clock for meeting rooms, classrooms and landscape phones, with seconds, date, weekday, theme and Wake Lock controls.
How to use it
- 1Choose 12- or 24-hour time and whether to show seconds, date and weekday.
- 2Select a light or dark display and enter fullscreen.
- 3Enable Keep screen awake only when the browser supports Wake Lock.
Limits and accuracy
This display uses the device clock and is not network-calibrated. Wake Lock may be released by power saving or when the page is hidden.
Privacy
No account or network request is needed for the clock display.
Browser compatibility
Fullscreen and Wake Lock support differ by browser. Unsupported controls show a clear message.
Frequently asked questions
Is this network-calibrated time?
No. Use Exact Network Time first if you need to check device offset.
Why did the screen turn off?
Wake Lock may be unsupported or overridden by system power saving.
Does it work in landscape?
Yes, the typography scales for landscape and portrait screens.