3 Hour Timer
Set a timer for 3 hours. Need an alarm in 3 hours? Press start and it rings when the countdown hits zero.
Ready
More options
Shortcuts: Space start or pause, R reset, F fullscreen, M mute
About this timer
Slow braises, pulled pork and many long exams run three hours or more. Keep your device plugged in and awake for the whole countdown.
Timers this long are set once and forgotten: baking and braising, parking meters, long study or work blocks, and charging cycles. Because the countdown is anchored to a real clock time, it stays accurate for hours in a background tab, and it survives a page refresh.
Need a different length? Set a custom timer in hours, minutes and seconds, or pick one of the presets below.
Only need the clock time? See what time it will be 3 hours from now.
3 Hours in other units
3 Hours = 10,800 seconds = 180 minutes
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Questions about how it works? See the FAQ