A five minute timer

This page starts counting 5 minutes the moment it opens, and makes a sound when it finishes. Nothing to set, and nothing to press first.

What people set 5 minutes for

A short break, a warm-up, a hard-boiled egg, or the "five more minutes" that needs to actually be five.

Worth knowing

This is the most-set timer length on the web, and it is usually set by somebody who has just said "five minutes" out loud to another person.

Questions

Do the timers keep running if I switch tabs?

Yes. The countdown is measured against a monotonic clock rather than counted in ticks, so a backgrounded tab, a throttled timer or a laptop lid closing does not lose time — when you come back it shows what it should, not what it managed to count.

Does a timer survive a daylight-saving change?

Yes, and the distinction matters. A countdown measures elapsed real time, so a timer set for six hours across a spring-forward still runs six real hours even though the wall clock advances seven. An alarm set for a wall-clock time does the opposite: it fires when the clock says so, which is what you want from an alarm.