1 hour timer
An hour is a full meeting slot, a long deep-work block, or a class period. Consider a short stretch halfway through.
1:00:00Ready
Space bar starts and pauses. A chime plays at zero — keep this tab open.
Other lengths
5 minutes10 minutes15 minutes20 minutes25 minutes30 minutes45 minutes50 minutes
Need repeated rounds? Use the interval timer, or time something open-ended with the stopwatch.
Questions people ask
How do I start the 1 hour timer?
Press Start (or the space bar). It is already set to one hour. A chime plays when it reaches zero.
Can I pause it?
Yes — Pause freezes the remaining time, and Resume continues from there. Reset returns it to the full length.
Does it keep time in a background tab?
Yes. It measures against the system clock, so switching tabs does not slow it down. The remaining time also shows in the tab title.