A meditation timer

This page starts counting 10 minutes the moment it opens, and makes a sound when it finishes. Nothing to set, and nothing to press first.

What people set 10 minutes for

Ten minutes of sitting, with a sound at the end so you are not wondering how long is left.

Worth knowing

The point of the timer is not the ten minutes, it is not having to track them — a countdown you cannot see is doing more work here than the bell at the end.

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.