Apps

Countdown Timer

Set a duration, start the clock, and get an audio alert when time is up. Keeps tracking in overtime so you always know how far over you've gone.

00:00:00

Timer stays running when you enter or exit fullscreen

This tool is free — if it's useful to you, consider supporting future tools.

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How to use

  1. 1 Enter your desired hours, minutes, and seconds.
  2. 2 Click Start. The timer counts down in real time.
  3. 3 A double-beep plays at zero — toggle Sound on/off beforehand if needed.
  4. 4 The timer continues into overtime (shown in red) so you can see exactly how far over you've gone.
  5. 5 Click Focus Mode to go fullscreen — controls stay accessible at the bottom.

What's the overtime feature?

Most timers stop at zero. This one keeps going — the display turns red and counts upward, showing how many seconds or minutes you've exceeded your target. Useful for meetings that run long, study sessions, classroom exercises, and workouts where knowing the real elapsed time matters.

Keyboard Shortcuts

Works anywhere on this page — no clicking required.

Start timer
Space
Reset timer
Space (while running)
Enter Focus Mode
F
Exit Focus Mode
Esc
Toggle sound
M

Good for

Pomodoro sessions Presentations Classroom activities Exams & quizzes Workouts Cooking Deep work blocks