10 Hour Timer

10:00:00

Keyboard: Space start/pause · R reset · F full screen

10 hours in other units

Seconds36,000
Minutes600
Hours10
Milliseconds36,000,000

Frequently asked questions

How do I set a 10 hour timer?

This page is already set to 10 hours. Press Start (or the space bar) and the timer counts down in your browser. When it reaches zero, an alarm sounds and the tab title shows "Time's up!".

How many seconds are in 10 hours?

10 hours equal 36,000 seconds or 600 minutes.

Will the timer keep running if I switch tabs?

Yes. The timer is based on the clock time when it will end, so it stays accurate in a background tab. Keep your device awake and the volume up so you can hear the alarm.

Can I change the alarm sound?

Yes. Choose Beep, Bell, Digital alarm or Chime under the timer and press Test sound to hear it. Your choice is remembered on this device.