1 Hour Timer

Sound / Message

Sound plays when the timer ends.

This is a ready-to-use 1 hour countdown timer. Press Start and an alarm sounds after 1 hour. You can change the time, the sound and the message at any time.

1 hour in other units

Need to know exactly how long the 1 hour timer runs? Here is the same duration expressed in other units of time:

  • 1 hour = 3,600 seconds
  • 1 hour = 60 minutes

Time-boxing one hour with a 1 hour timer

An hour is the unit most calendars, lessons and parking meters are built around, which makes a one-hour countdown a useful time-box. Whatever you choose to do, you know that it ends at a fixed moment.

It also suits longer, calmer activities: a digital detox hour, a family game, an Earth Hour evening or an hour of practice on an instrument.

  • A focused study or work hour followed by a real break.
  • A digital detox: put the phone away until the alarm.
  • Parking, a sauna session or any limited slot.
  • Practice or rehearsal that should not run over.

How to use the 1 hour timer

  • Press Start. The countdown for 1 hour begins right away.
  • Press Pause if you need to stop, then Resume to carry on from where you left off.
  • When time is up an alarm sounds and your message appears. Press Stop to silence it.
  • Want a different length? Change the hours, minutes or seconds before you press Start.

Nearby timers

Same duration, different unit

Frequently asked questions

How many seconds are 1 hour?

1 hour equal 3,600 seconds, which is 60 minutes or 1 hours.

How do I keep the timer running for a full hour?

Press Start and keep the tab open and your device awake. The countdown follows your device clock, so it stays accurate even if you switch tabs.

Will the 1 hour timer keep running if I switch tabs?

Yes. The countdown is based on your device clock, so it stays accurate when the tab is in the background. Keep the tab open and your device awake so the alarm can sound.

Can I pause the 1 hour timer and resume it later?

Yes. Press Pause to stop the countdown and Resume to continue with the remaining time. Reset takes you back to the start.

Can I change the alarm sound?

Yes. Open the Sound / Message settings under the timer to pick a sound, preview it and add a custom message. Your choice is remembered in your browser.

Timers