Countdown Timer

Set hours, minutes and seconds — the timer keeps running in the background and beeps when it hits zero. Presets below for the common ones.

00:05:00

H M S

Good things to time

Kitchen timers get borrowed, phone timers interrupt music, and whiteboard meetings run long. A dedicated page tab shines for: presentation rehearsals ("you have 5 minutes"), workout intervals, tea that deserves better than "a bit strong," exam practice under real time pressure, and the "kids, 10 more minutes of screens" negotiation (the number on screen is the referee, not you).

The timer uses wall-clock deltas, so it stays accurate even if the browser throttles background tabs. Keep this tab on a second monitor or tablet propped on the counter and the big digits do the rest.