Need a different time? Set a custom countdown timer or pick another one: 12 minute timer · 15 minute timer · 25 minute timer · 30 minute timer.
This timer counts down 20 minutes (1200 seconds) and plays an alarm at zero. It is handy for a power nap, a short run intro, a classroom activity or a timed study sprint. It runs entirely in your browser: nothing is uploaded.
Press Start on this page. The 20 minute timer is already set to 20:00 and sounds an alarm when it reaches zero. Press Pause to stop it and Reset to start over.
Common uses are a power nap, a short run intro, a classroom activity or a timed study sprint.
Usually yes. The timer follows the clock, so it stays accurate in a background tab, and the remaining time shows in the tab title. Keep the page open until it finishes, because it cannot ring after you close it. Some browsers block sound until you have clicked on the page, which pressing Start counts as.
20 minutes are 1200 seconds.
See also: All timers · 10 second timer · 15 second timer · Pomodoro timer · Stopwatch