TimeNowTools
TimeNowTools
Stopwatch

Theme

45 Second Timer

Set a timer for 45 seconds. Press Start or the Space bar.

Ready Sound off

Timer settings

Alarm sound
Clock format

Keyboard shortcuts

KeyAction
SpaceStart or pause
RReset
FFull screen
MSound on or off
EscLeave full screen

Shortcuts don't fire while you type in a field. Turn them off in Timer settings.

About 45 seconds

Start now and it ends at--:--Your time
45 seconds is45 s0.0125 hours
Often used forWork intervals in HIIT circuits, or a short stretch.

How to use the 45 seconds timer

  1. The timer is already set to 00:45. Press Start, or the Space bar.
  2. Need a little more? Press +1 min while it runs, or pick 50 seconds or 1 min.
  3. When the alarm rings, press Stop alarm. It stops by itself after 60 seconds unless you change that in Timer settings.

Questions

How do I set a 45 seconds timer?

This page is already set to 45 seconds. Press Start or the Space bar. To change it, type new numbers into the digits or pick a nearby duration.

Will it ring if the tab is in the background?

Yes. The alarm is scheduled the moment you press Start, so it rings on time even in another tab. Keep the device awake and the volume up.

Can I make it full screen?

Yes. Press the full-screen button or the F key. The digits fill the screen and the controls hide until you move the mouse or tap.

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