TimeNowTools
TimeNowTools
Stopwatch

Theme

24 Hour Timer

Set a timer for 24 hours. 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 24 hours

Start now and it ends tomorrow at--:--Your time
24 hours is86,400 s24 hours
Often used forA full day: daily reminders and long experiments.

Need the clock time instead? What time is 24 hours from now

How to use the 24 hours timer

  1. The timer is already set to 24:00:00. Press Start, or the Space bar.
  2. Need a little more? Press +1 min while it runs, or pick 10 hours or 12 hours.
  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 24 hours timer?

This page is already set to 24 hours. 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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