1 Hour TimerFree Online Countdown
Set a timer for 1 hour with a loud alarm. Pause, add a minute, share the link.
Set time
Quick timers
Keep this tab open with volume on. Tap Test sound once to allow audio.
Online 1 hour timer
Need a quick 1 hour timer? Start the countdown for 1 hour in one tap. There is nothing to download and no account to create, it works in your browser on phone, tablet and computer.
One hour suits a long focus block, a movie break or slower tasks like laundry.
Popular uses for a 1 hour timer
Deep work
Protect one uninterrupted block for your hardest task.
Practice test
Simulate real exam timing at home.
Dinner in the oven
Do other things and let the timer remind you.
Cardio session
Run, cycle or swim for a set duration.
1 hour in other units
How to use the 1 hour timer
- 1Check that the timer shows 1 hour, or change hours, minutes and seconds.
- 2Tap Start Timer and allow notifications when your browser asks.
- 3Watch the ring count down. Pause, resume or tap +1 min whenever you need.
- 4When 1 hour are over, a loud alarm rings. Tap Stop alarm or restart the same timer.
Other timers like 1 hour
1 hour timer FAQ
How do I set a timer for 1 hour?
The 1 hour timer is already selected on this page. Tap Start Timer, allow notifications if asked, and keep the tab open with your volume up. You will hear a loud alarm when 1 hour have passed.
How many seconds, minutes and hours is 1 hour?
1 hour equals 3600 seconds, 60 minutes or 1 hours.
Will the 1 hour timer keep running if I close the tab?
No, the tab must stay open for the alarm to play. You can switch to other tabs or apps, and the timer keeps its end time even if you refresh the page.
Can I pause or add time to the 1 hour timer?
Yes. Use the Pause button to stop the countdown and Resume to continue. Tap +1 min to extend a running timer, or Reset to start over.
Does the 1 hour timer work on iPhone and Android?
Yes. It works in Safari, Chrome, Edge and Firefox on iPhone, Android, Windows and macOS. It is free and needs no app or signup.