40 Minute Timer
The 40 minute timer
Forty minutes is a lesson period in many schools and a comfortable length for deep work before attention starts to slip.
Press start and the ring empties as the time runs down. The remaining time also appears in the tab title, so you can work in another window and still see it. When it reaches zero the tone plays until you stop it.
What 40 minute is good for
What people actually use this length for:
- A single class or tutoring session
- Extended focus work, slightly longer than a Pomodoro
- Roasting a chicken portion or a tray bake
- A long-form reading session
- Practising an instrument with a set end point
Forty minutes suits work that needs a run-up: the first ten are warm-up, the last thirty are the session.
Other timers
Need a different length? Try 25 Minute Timer, 30 Minute Timer, 45 Minute Timer, 1 Hour Timer, or set any duration on the timer hub.
Questions people ask
Does the timer keep running if I open another tab?
Yes. It works from the finishing moment rather than counting ticks, so background throttling does not slow it down.
Can I change the sound?
Fifty tones are listed beside the timer, from a soft chime to a klaxon. Your choice is remembered on this device.
Will it start automatically?
Only if the site is set that way. Otherwise press start when you are ready — which is usually what you want for a preset timer.
Where to go next
This is the 40 minute timer — its own page, so you can bookmark it or send the link to someone rather than setting the duration again. If you need the time somewhere else rather than a timer, current time around the world has every country and city.
- countdown timer — count down from any length you set
- stopwatch — count up, with laps and splits
- Pomodoro timer — work and break cycles counted for you
- alarm clock — ring at a set time while the tab stays open
- world clock time — the current time in every country, territory and US state