45 minutes timer
45 minutes countdown with alarm.
Timer
45:00
Quick presets
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This timer is set to 45 minutes. That is 2,700 seconds, 0.75 hours, 2,700,000 milliseconds. 1.3 timers like this fit in one hour and 32 in a day.
During 45 minutes a resting heart beats about 3,150 times and a person walks roughly 3,600 metres at an easy pace.
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What is a 45 minutes timer good for?
- a class or meeting with a hard stop
- baking a cake
- a full workout
How to use it
Press the space bar or the Start button. When it reaches zero your chosen sound plays; on the main timer page you can add and chain several timers for intervals. Sound and volume settings are saved in your browser.
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Frequently asked questions
45 minutes equals 2,700 seconds.
Press Start: the time is already set. You can pause it, reset it, change the sound or go full screen.
Yes. The timer keeps running in the background and rings when it ends as long as the page stays open; the tab title shows the time left.
In supported browsers the "Keep the screen on" option uses the Wake Lock API to prevent it.