90-minute timer
A free 90-minute countdown timer with sound, fullscreen, and a shareable link — the exact settings round-trip through the URL.
JavaScript is required to run this timer — enable it to start, pause, and hear sound alerts.
This finished while this tab wasn't open to notice — we can't alert a closed tab, only report back honestly like this.
Space start/pause R reset F fullscreen
Enable JavaScript to see background-alert options — this timer keeps correct time either way, but notifications and the install prompt both require it.
This timer keeps the exact time even if you switch tabs. If this tab or your browser closes, nothing can alert you at the exact finish time — there's no server behind this, by design. Come back any time and we'll tell you honestly how long ago it ended.