18 Minute Timer
This free 18 minute timer is ready to go — the countdown is already set to 18 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 focused study or work sprint before a break
- A power nap (short enough to avoid grogginess)
- A home-workout circuit with timed sets
- Oven or air-fryer cooking steps
- A guided meditation or yoga sequence
How to use it
- The timer opens preset to 18 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 18 minutes?
18 minutes works out to 1,080 seconds, or about 30% of an hour. That is roughly 1.2% of a 24-hour day. Half of 18 minutes is 9 minutes, and two rounds back to back add up to 36 minutes.
Eighteen minutes is the maximum length of a TED talk.
Things that take about 18 minutes
- Play an 18-minute podcast episode or language lesson while you cook or commute.
- Do housework in 18-minute bursts — fold laundry, vacuum one floor or clear one shelf.
- Bake or roast — many sheet-pan dinners and traybakes need roughly 18 minutes in the oven.
- Cap a nap at 18 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 18 minutes?
18 minutes equals exactly 1,080 seconds (18 × 60).
What fraction of an hour is 18 minutes?
18 minutes is about 30% of an hour (18/60).
Can I restart the 18-minute countdown when it finishes?
Yes. When the alarm sounds, press Reset and then Start to run the full 18 minutes again — handy for repeated rounds.