A full 1 hour countdown timer

A full hour is a common length for exams, long meetings, extended workout sessions, or a single uninterrupted block of deep work. This timer opens set to 60 minutes and stays accurate for the whole session — including through tab switches, a locked screen, or a device that briefly went to sleep.

For exams and long sessions

For anything time-sensitive over a full hour, it's worth running the countdown in fullscreen mode so it stays visible the entire time without anyone needing to check a phone. If you're timing a meeting with a fixed agenda, the meeting timer page is built specifically for that.

Related timers

45 Minute Timer

A 45 minute online timer built for class periods, long focus blocks, and extended workouts — accurate even if the tab is backgrounded.

Meeting Timer

An online meeting timer to keep standups, agendas, and time-boxed discussions on track, with a fullscreen mode for shared screens.

Countdown Timer

A general-purpose online countdown timer for any duration, hours to seconds. Fullscreen mode, custom alarms, and shareable timer links.