00:00

Keep this tab open with the sound on. The timer keeps correct time in a background tab, but a phone or laptop that goes to sleep may delay the alarm until you wake it; turn on Keep screen on for long timers.

Options

79 minute timer

Press Start and an alarm will ring in exactly 1 hour and 19 minutes. Good for a long class period or a workout with warm-up and cool-down.

79 minutes is 1 hour and 19 minutes, 1.31667 hours, or 4,740 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

Seconds

Minutes and hours

Set a custom timer · Stopwatch · Pomodoro timer · Classroom timer