Countdown Timer Online — Free Countdown Clock

:
:
10:00

Press Space to start/pause

Pomodoro TimerTabata TimerHIIT TimerBoxing TimerStopwatch10 Min Timer

What Is a Countdown Timer?

A countdown timer counts down from a specific time you set to zero. It is perfect for timed tasks, cooking, exams, presentations, game shows, and any activity where you need to know when a fixed period has elapsed.

How to Use This Countdown Timer

  • Enter hours, minutes, and seconds in the input fields.
  • Press Start or tap the Space bar to begin.
  • Switch to another tab — the timer continues running accurately in the background.
  • Choose your preferred alert sound from the dropdown.

Popular Countdown Timers

Looking for a specific duration? 5 minute timer, 10 minute timer, 15 minute timer, 30 minute timer, and 1 hour timer are all available with a single click.