⏱️ Countdown Timer & Stopwatch
Count down to a big day, time a task with laps, or run work/rest interval rounds, all in one place, all on your device.
Pick a target date and time above.
How the countdown timer & stopwatch works
Three timers share one tool. The countdown ticks down to any date and time you set (and counts up once it passes, so it doubles as a "time since"). The stopwatch times with centisecond precision and records laps. The interval timer runs configurable work/rest rounds with a beep at each switch, handy for focus sprints, workouts or timeboxing. The countdown target is saved in your browser so it's there next time.
The interval mode is the quiet workhorse: set 30 seconds work / 15 rest for a quick focus burst, or longer rounds for exercise. Because everything runs locally, the timers keep perfect time without any server, though a background browser tab may throttle timers, so keep the tab visible for exercise use.
Frequently asked questions
What can I count down to?
Any date and time, a launch, a holiday, a deadline, a birthday. Once the moment passes, the display flips to counting up, so it also works as a "time since" counter.
Does the stopwatch record laps?
Yes, while running, each tap records a lap with both the split (since the last lap) and the total elapsed time, to centisecond precision.
What is the interval timer for?
Repeated work/rest cycles: focus sprints, HIIT workouts, timeboxed practice. Set the work seconds, rest seconds and number of rounds, and it beeps at each transition.
Is my countdown saved if I close the tab?
The countdown target and label are stored in your browser, so they return when you reopen the page. Nothing is uploaded.
Are the timers accurate in a background tab?
Browsers throttle timers in hidden tabs to save power, which can slow a background countdown. For exercise intervals where timing matters, keep the tab visible.