Countdown timer

How do I set the countdown?

Choose a preset or type your own time. 5m, 90s, and 1:30 all work. Press Start when you're ready.

The ring shows how much time is left, and the page title carries the same number, so you can check it from another tab.

What can I use it for?

Use it for cooking, study, talks, meetings, games, or short breaks, and set the time that fits your task. TimerBox does not choose a safe cooking or exercise time for you.

For a talk, set the full slot and start your practice. Meetings need a clear end time. For a break, pick something short enough that you come back.

Can I share a preset?

Yes. The time can be part of the link. /countdown/#15m opens a 15-minute timer. Copy that link or bookmark it.

Use the quick links below for common times. Each one opens this page with the time ready.

What happens in a hidden tab?

The timer ties the run to clock time, so when the page can run again it checks the clock and updates the display. A sleeping device can still delay the visible update or sound until it wakes.

Keep the device awake and the sound on when you must hear the end. Use a purpose-built timer when a missed signal could cause harm.

Keyboard and sound controls

Space starts or pauses the timer. R resets it. Both need the page to have focus.

You can pick from several sounds, and your choice stays in this browser. Test it before you leave the screen.

Quick timers

Bookmark these or share them. Each link opens the countdown with the duration already set.

For a specific day instead of a duration, the countdown to a date tracks the days, hours, and minutes until a birthday, trip, or deadline, and hands you a link to share it.