1 Hour Timer
This 1 hour timer is already set to 1:00:00: press Start and it counts down 60 minutes, then plays the alarm you chose.
Set. Start. Take a breath.
Extra time applies to this session only.
Pause and reset to change the start time.
Sound & display Make it work for you
Press Test sound to check your volume before starting.
Keep this page open. Sound may be delayed or unavailable if your device locks or your browser suspends the page.
Before a long countdown, press Test sound and turn on Keep screen awake, so the alarm is not lost when a screen goes to sleep.
Key takeaways
- The page opens at 1:00:00 and waits until you press Start.
- One hour is 60 minutes or 3,600 seconds.
- For a full hour, keep the tab open and turn on Keep screen awake.
- Press +1 min to add a minute while it runs, or Pause if you are interrupted.
How do I set a 1 hour timer?
You do not need to set anything: the countdown is ready at one hour. Press Start, and the time left counts down from 1:00:00. If you want a different length, press Pause and Reset, enter hours, minutes and seconds in the custom fields and press Set timer.
- Choose Soft chime or Clear beep under Sound & display, and press Test sound to check the volume.
- Press Full screen if the whole room needs to see the time.
- Turn on Visual circle if you would rather watch the time shrink than read digits.
What can I do in one hour?
An hour is long enough to finish a real piece of work and short enough to keep the end in sight. Plan what "finished" means before you start.
| Plan | How the hour is split | Good for |
|---|---|---|
| One block | 60 minutes straight | An exam paper, a booked meeting room |
| Work and a break | 50 minutes work, 10 minutes rest | Study, writing, coding |
| Two Pomodoros | 25 + 5 + 25 + 5 minutes | Tasks you keep putting off |
| Three parts | 20 + 20 + 20 minutes | A lesson: intro, practice, review |
For the split plans, the Pomodoro timer and the shorter timers (25, 20 and 10 minutes) save you resetting this one.
Will the alarm go off if my screen locks?
It can fail to. Browsers may slow down or pause pages that are hidden or on a sleeping device, and an hour gives a phone plenty of time to lock. Keep the tab open and in front, turn on Keep screen awake, and plug in a phone or laptop that might run low. If your device locks anyway, the time left is still correct when you return, but the sound may have been delayed.
How do I use a 1 hour timer for an exam?
Press Full screen on the classroom screen before students sit down, and press Start when the paper begins. The bar changes colour as time runs low, so everyone can see when it is time to check answers. If the exam needs reading time, warnings or extra time for some students, the Test timer is built for that.
A rhythm for your focus ↗
Focus sessions, short breaks and a longer pause. Make the intervals your own.
Open Pomodoro timerTIME EVERYONE CAN SEEKeep the room on track ↗
A clear classroom countdown with an activity label and a quiet finish if you prefer.
Open classroom timerA timer for the time you have.
Pick a preset below. Need to count up instead? Our sister site Online Stopwatch times laps and split times in your browser, free and without an account.
Timing an exam? Try the Test Timer with warnings, extra time and a finish clock.
Countdowns
More timers and countdowns
FAQ
Can I set a timer for longer than one hour?
Yes. Enter the hours, minutes and seconds you need in the custom fields and press Set timer. For two hours or 90 minutes, the 2 hour timer and the 90 minute timer pages open at those lengths.
What happens when the hour is up?
The timer reaches 0:00 and plays the alarm sound you picked. Press Stop sound to silence it, or Reset to go back to 1:00:00 for another hour.
Can I pause the timer and carry on later?
Yes. Press Pause and the remaining time stays as it is. Press Start again to continue from the same point. Leave the tab open while it is paused; a session can often be restored after a reload, but not always.