Forty-five seconds is a popular work interval in circuit training, with 15 seconds of rest to round out each minute. Press Start and watch the red circle shrink as the time runs out.
Go full screen to show the 45 second timer on a projector or smartboard. When time is up, a chime plays and the screen says "Time’s up!".
Ideas for using it
- Circuit training intervals
- Speed writing and word games
- Short presentations and show-and-tell
- Quick partner shares
How to use the timer
- Tap a time (or type your own, like 7, 2:30 or 1h 15m) and press Start.
- Press Full screen to show it on a projector, smartboard or TV.
- When the time is up, a chime plays and the timer shows Time’s up!. Press Start to go again.
Timers by length
More timers
Countdowns
Frequently asked questions
How do I set a 45 second timer?
This page is already set to 45 seconds. Just press Start (or the space bar). To change the time, tap another length or type your own.
Will the timer keep running if I switch tabs?
Yes. The timer counts down from a fixed end time, so it stays accurate in a background tab, and the sound still plays when time is up. The remaining time is also shown in the browser tab title.