150 minute timer
Press Start and an alarm will ring in exactly 150 minutes. Good for a long exam, a movie or a slow roast.
150 minutes is 2 hours and 30 minutes (2.5 hours), or 9,000 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.
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Set a custom timer · Stopwatch · Pomodoro timer · Classroom timer