25 hour timer
Press Start and an alarm will ring in exactly 25 hours. Good for a day-plus countdown or a long fermentation.
25 hours is 1,500 minutes, or 90,000 seconds. 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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Set a custom timer · Stopwatch · Pomodoro timer · Classroom timer