How to use the 45 minute timer
- The timer is already set to forty-five minutes. Press Start or the space bar.
- Pause and resume with the same button, or tap ＋1 min if you need longer.
- When time is up, the alarm sounds, the screen flashes and phones vibrate. Pick the alarm sound below the timer.
- Use ⛶ for full screen so everyone in the room can see it.
What a forty-five minutes timer is good for
Forty-five minutes is a typical school lesson and the length of many practice exam papers, so it is ideal for timed revision. It also matches a full-length gym or yoga class and the bake time of many cakes and breads. Use the full-screen display at the front of a classroom so everyone can see how much time is left.
The countdown is measured against the clock, so it stays accurate in a background tab, and the remaining time shows in the tab title. Need a different length? Tap one of the quick times or type your own. Everything runs in your browser with no app or sign-up.
FAQ
How long is a school lesson?
Commonly 45 to 60 minutes, depending on the country and school.
Will the alarm go off if my phone screen locks?
Keep the screen on for the alarm to sound reliably; many phones pause web pages when locked. The timer tries to keep the screen awake while it runs.
Can I pause the timer?
Yes. Press Pause and then Resume. Reset starts it again from forty-five minutes.