1 Hour Timer
A free 1 hour timer that opens preset to 1 hour. Press Start and it counts down in your browser, sounding an alarm at zero. Great for long focus blocks, slow cooking, study sessions and naps. No download, no signup.
What is this timer good for?
- A deep-work or Pomodoro-style focus block
- A revision or reading session before a rest
- Marinating, proofing dough or slow-roasting
- A full workout or class with warm-up and cooldown
- A longer nap or rest period
How to use it
- The timer opens preset to 1 hour.
- Adjust the hours, minutes or seconds for a different length.
- Press Start and the big display counts down.
- An alarm sounds at 00:00:00 — press Reset to run it again.
How long is 1 hour?
60 minutes is exactly 1 hour — 3,600 seconds in total. That is roughly 4.2% of a 24-hour day. Half of 1 hour is 30 minutes, and two rounds back to back add up to 2 hours.
One hour is the standard unit of meetings, lectures and gym classes worldwide.
Things that take about 1 hour
- Sit a 1-hour practice exam under honest timed conditions.
- Hold a meeting or webinar to exactly 1 hour so it doesn't swallow the day.
- Roast a chicken, bake a casserole or simmer a sauce that needs about 1 hour.
- Race through a 1-hour house clean, moving to a new room every few minutes.
FAQ
Will it ring if I switch tabs?
Yes. The timer calibrates against your system clock, so it stays accurate even in a background tab. Just don't close the tab.
Do I need to download anything?
No. The timer runs entirely in your browser with no download, signup or plugin.
Can I change the duration?
Yes. Type any hours, minutes and seconds into the fields, or pick a related timer above.
Is it free?
Yes, it is completely free to use.
How many minutes are in 1 hour?
1 hour is 60 minutes, or 3,600 seconds (1 × 60 × 60).
Does a 1 hour countdown stay accurate for that long?
Yes. The countdown is anchored to your device's clock rather than counting ticks, so even across the full 1 hour it stays accurate to the second.
Can I restart the 1-hour countdown when it finishes?
Yes. When the alarm sounds, press Reset and then Start to run the full 1 hour again — handy for repeated rounds.