30 Minute Timer
This free 30 minute timer is ready to go — the countdown is already set to 30 minutes. Just press Start and watch it tick down. When it reaches zero a built-in alarm sound plays. No download, no signup; works on desktop and mobile.
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 30 minutes.
- 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 30 minutes?
30 minutes works out to 1,800 seconds, or exactly 1/2 of an hour. That is roughly 2.1% of a 24-hour day. Half of 30 minutes is 15 minutes, and two rounds back to back add up to 1 hour.
Thirty minutes is a sitcom episode with ads — and the daily exercise minimum many guidelines suggest.
Things that take about 30 minutes
- Play a 30-minute podcast episode or language lesson while you cook or commute.
- Do housework in 30-minute bursts — fold laundry, vacuum one floor or clear one shelf.
- Bake or roast — many sheet-pan dinners and traybakes need roughly 30 minutes in the oven.
- Cap a nap at 30 minutes so you wake before deep sleep leaves you groggy.
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 seconds are in 30 minutes?
30 minutes equals exactly 1,800 seconds (30 × 60).
What fraction of an hour is 30 minutes?
30 minutes is exactly 1/2 of an hour. You would need 2 rounds of it to fill a full hour.
Can I pause the 30-minute timer halfway through?
Yes. Press Pause at any point and Start to continue; the remaining part of the 30 minutes is kept to the second.