15 Minute Timer

15 Minute Timer — Free, Shareable, In Sync

Fifteen minutes is a classic break length and a common quiz-round or lightning-talk limit. Set it once, share the link, and every screen in the room counts down together.

00servers to run this

Anyone opening your link right now sees exactly this.

Change the countdown

Already running at 15 minutes above — adjust it here if you need something else.

Direction

Quick timer

Custom minutes

…or until a date & time

What's it for? (shown on every screen)

Common questions

Is this good for timing quiz rounds?

Yes — set 15 minutes per round, share the link once, and every team's device shows the identical time remaining, so nobody can dispute the cutoff.

Can I project this on a screen instead of sharing the link?

Yes — use Fullscreen mode for a clean, large display, or share the link too so people can check it on their own phones as well.

Will everyone's countdown reach zero at exactly the same moment?

Yes, within about a second — every device counts down against the same shared timestamp using its own clock, with no server round-trip to introduce lag.