30 Minute Countdown
A free 30 minute countdown timer that opens preset to 30 minutes. Press Start and the big display counts down to zero, then an alarm sounds. Use it for events, livestreams, games and breaks. 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 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
- Run a 30-minute study or deep-work block, then reward yourself with a short break.
- Do a 30-minute home workout video from warm-up to cooldown.
- 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.
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.
What if I need a bit more or less than 30 minutes?
Adjust the hours, minutes and seconds fields before pressing Start — the 30-minute preset is only a starting point, and the Related links above jump to neighbouring lengths.