Event Countdown Display (big screen, full screen)
Set a target date, time and time zone to show the remaining days, hours, minutes and seconds in large type. Supports full screen, shows your message when time is up and handles DST changes.
- Runs in your browser (no upload)
Seconds are allowed (e.g. 23:59:30).
Until you pick a date, the next 1 January is used as an example.
New Year Countdown
—Days
—Hours
—Minutes
—Seconds
How to use
- Enter the event name and the message to show when the countdown ends.
- Choose the target date, time (seconds allowed) and time zone.
- Press "Full screen" to show it large on a projector or big display (Esc returns).
FAQ
Does it stay accurate if the computer sleeps or the tab is in the background?
Yes. The time left is always recalculated as "target time minus current time", so any pause in updates is caught up immediately.
Can I count down to an event abroad?
Yes. Pick that place's time zone and enter the local time. Times skipped or repeated by daylight saving changes are explained and handled.
Why is there no full-screen button on iPhone?
Safari on iPhone does not support full screen for page elements (Fullscreen API), so the button is hidden. Turning the phone sideways gives a larger view.
Notes & limitations
- What you enter is processed only on this page and is not sent to YUCTS servers.
- The countdown uses your device's clock; if that clock is off, the display is off by the same amount.
- Full screen is only offered where the browser supports it (not Safari on iPhone).
- Keeping the screen awake needs the Screen Wake Lock API and only applies while in full screen.
- Settings are not saved; reloading the page restores the defaults.
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