12 minute timer
Press Start and an alarm will ring in exactly 12 minutes. Good for a hard-boiled egg, the Cooper 12-minute run test, or a lightning talk.
12 minutes is 720 seconds, or 20% of an hour. The timer keeps exact time in a background tab and shows the time left in the tab title. Press Space to pause, R to reset, F for full screen.
Other timers
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Minutes and hours
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- 1 hr
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Set a custom timer · Stopwatch · Pomodoro timer · Classroom timer