40 Minute Timer
A simple, reliable 40 minutes timer. Set it and stay productive.
About the 40 minutes timer
Forty minutes for a lesson-length block, a tray bake or a longer yoga session. Press Start and the 40 minutes timer counts down 2,400 seconds, keeps the remaining time in the tab title, and rings when it reaches zero.
Ideas for a 40 minutes timer
- Teach or study for one school-period block
- Bake a tray of brownies or a loaf of banana bread
- Do a longer yoga or strength session
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.
40 Minute Timer FAQs
Should I use 40 or 45 minutes for a study block?
Many school periods and online classes run 40 minutes. If you want the standard exam-style block, use the 45-minute timer instead.
How do I use the 40 minutes timer?
Press Start and the timer counts down from 40 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 40 minutes?
40 minutes is 2,400 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.