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This timer counts down 15 seconds (15 seconds) and plays an alarm at zero. It is handy for a short stretch hold, a quick rest between exercise sets, or a speed round in a game. It runs entirely in your browser: nothing is uploaded.
Press Start on this page. The 15 second timer is already set to 00:15 and sounds an alarm when it reaches zero. Press Pause to stop it and Reset to start over.
Common uses are a short stretch hold, a quick rest between exercise sets, or a speed round in a game.
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.
15 seconds are 15 seconds.
See also: All timers · 1 minute timer · 2 minute timer · 3 minute timer · Pomodoro timer · Stopwatch