90 Minute Timer
A simple, reliable 90 minutes timer. Set it and stay productive.
About the 90 minutes timer
An hour and a half: one full sleep cycle, a football match or a deep-work block. Press Start and the 90 minutes timer counts down 1 hour 30 minutes or 5,400 seconds, keeps the remaining time in the tab title, and rings when it reaches zero.
Ideas for a 90 minutes timer
- Take a nap of one full sleep cycle
- Time a football match plus half-time
- Block out a deep-work session based on the 90-minute ultradian rhythm
- Proof bread dough for its first rise
Why use a timer?
- Stay focusedGreat for work, study or exercise.
- Be more productiveBreak large tasks into smaller chunks.
- Reduce stressA clear end time helps you stay on track.
- Works on any deviceUse it on desktop, tablet or mobile.
90 Minute Timer FAQs
Is 90 minutes a good nap length?
A 90-minute nap covers roughly one full sleep cycle, so you are less likely to wake groggy than from a 45- to 60-minute nap. A 20-minute nap is the other common choice.
How do I use the 90 minutes timer?
Press Start and the timer counts down from 90 minutes. You can pause and resume at any time, or press Reset to start over. When the countdown reaches zero you’ll see “Time’s up!” and, if sound is on, hear an alarm.
How long is 90 minutes?
90 minutes is 1 hour 30 minutes or 5,400 seconds.
Will the timer keep running if I switch tabs?
Yes. The countdown is based on your device clock, so the remaining time stays accurate in a background tab and the tab title shows the time left. Browsers may delay sounds in background tabs and cannot play them if the tab is closed or the device is asleep, so keep the page open for important alerts.
Why didn’t I hear the alarm?
Check that the sound button is on and your device isn’t muted. Browsers only allow sound after you interact with the page, which pressing Start does. Some phones silence web audio when the screen locks.