18-Minute Timer
Press start. It counts down to zero and rings an alarm — nothing to download, nothing to sign up for.
About this 18-minute timer
A one-click 18-minute countdown, most often used for presentation and talk rehearsal, a power nap, or a focused study block. It runs in your browser and rings when it reaches zero.
Eighteen minutes: the TED talk
Eighteen minutes is the maximum length of a TED talk. TED's organisers chose it as long enough to be serious and short enough to hold attention. That makes it a natural rehearsal timer for presentations and a solid single block of focused work.
18 minutes in other units
| Seconds | 1,080 |
|---|---|
| Minutes | 18 |
| Hours | 0.3 |
| Milliseconds | 1,080,000 |
| Share of a day | 1.25% |
Tips for using a 18-minute timer
- Rehearsing a talk to 18 minutes forces you to cut to your strongest points.
- For a power nap, keep it to 20 minutes or under — 18 leaves time to fall asleep.
- Eighteen minutes is about how long most people can focus on a lecture before attention dips.
Frequently asked questions
How do I set a 18-minute timer?
Press Start above and the page counts down from 18 minutes on its own — nothing to type. Need a little longer? Press +1 min while it runs, or pick a nearby duration from the list.
How many seconds are in 18 minutes?
18 minutes is 1,080 seconds — 18 minutes or 0.3 hours. That's 1.25% of a day.
What is a 18-minute timer good for?
People commonly use a 18-minute timer for presentation and talk rehearsal, a power nap, or a focused study block.
Will it keep time if I switch tabs?
Yes. The countdown is measured against your device clock rather than counting screen refreshes, so it stays accurate in a background tab and the alarm fires on time. Some browsers need one click on the page before they allow sound.