All timers

4 hour timer

Set to 4 hours and ready. Press Space, or the button.

4:00:00

Space start / pauseR reset+ add a minuteF full screenM sound

About 4 hours

In seconds
14,400
Halfway at
2:00:00
Turns amber at
5:00 left
Fits in a 45-minute lesson
longer than one lesson

4 hours is longer than a 45-minute lesson — this one is for exams, workshops and double periods. The bar turns amber with 5:00 to go and red for the last ten seconds, so the room can see the end coming without anyone announcing it.

A little shorter, a little longer

150 minutes3 hoursAny other time

The rest of the kit