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

47 second timer

Press Start and an alarm will ring in exactly 47 seconds. Good for an exercise interval or a quick stretch.

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