5 Minute Timer
Five minutes is 300 seconds and one twelfth of an hour, so twelve runs fill one exactly. On a clock face it is the gap between two numbers, thirty degrees of the dial.
5:00
Nothing plays until you press start.
300 seconds, twelve to the hour
Five is one of the lengths that divides an hour cleanly. Twelve back-to-back runs make 60 minutes, three make a quarter of an hour, and two make ten. On an analogue dial the minute hand covers exactly one number in five minutes, thirty degrees of the circle, which is why clocks are read as five past, ten past, quarter past.
Where five minutes is the standard
- Blitz chess. Five minutes each with no increment, written 5+0, is the classic blitz control.
- A soft egg. Five minutes in boiling water leaves the white set and the yolk still runny. Ten gets you a firm one, which is what the 10 minute timer is usually for.
- Lightning talks. Five minutes is the usual hard cap, and an Ignite talk is exactly that: twenty slides at fifteen seconds each, advancing on their own.
- The five-minute start. Setting a real five on a job you are avoiding is different from telling yourself five. The clock decides when it is over.
Building with fives
Three runs equal one 15 minute timer, four equal 20 minutes, six equal half an hour. If five is too short, the next clean step up is ten; the full set is on the timer page.
Before you rely on it
This timer counts against your device’s system clock, so switching tabs or minimising the window does not slow it down and the number is still right when you come back. The sound is the weak point: a phone that goes to sleep may never play it. Do not lean on a browser tab where missing the alarm costs you something, such as medication, a timed exam, or a step at the stove that burns.