45 second timer
Forty-five seconds is three-quarters of a minute, a popular work period in circuit and interval training.
Ready
Ends 45 seconds after you press Start.
Keyboard: Space start or pause, R reset, F full screen.
45 seconds in other units
- Seconds
- 45
- Share of a minute
- 75%
- three-quarters of a minute
- Milliseconds
- 45,000
- On the timer
- 00:45
What a 45 second timer is good for
- Circuit stations. Work for 45 seconds at each station and use the rest of the minute to move to the next one.
- Rest between sets. A short rest between sets of lighter exercises.
- Spoken answers. A comfortable limit for answers in interview or debate practice.
Other timers
About this timer
The countdown runs against your device's clock from the moment you press Start, so it stays accurate in a background tab. The line under the digits shows the local time it will end. Pick one of ten alarm sounds, all generated in your browser (hear them on the countdown sounds page), and use full screen to read the time from across a room. Need a different length? Set a custom timer.
Related
Frequently asked questions
How do I set a timer for 45 seconds?
This page is already set to 45 seconds. Press Start, or the Space bar, and the countdown begins; when it reaches zero, the alarm sounds and the page shows Time's up. Pause stops the clock and Reset takes it back to 45 seconds.
How long is 45 seconds in minutes?
45 seconds is three-quarters of a minute (0.75 minutes).
What is the 45/15 interval format?
Forty-five seconds of work followed by 15 seconds of rest, so each round takes exactly one minute. Ten rounds make a ten-minute workout.
Will the alarm go off if I switch tabs?
In most desktop browsers, yes. The countdown is worked out from the real clock, and the alarm is scheduled with the browser's sound engine when you press Start, so it stays on time in a background tab. Phones can pause web pages when the screen locks, so keep the screen on — the timer asks the browser to do that where it can — and turn the volume up.