How the countdown works
A countdown measures the gap between now and a fixed target date and time. Because the ticking is relative, every open tab counts down to the same instant — which is exactly why a shared link works: everyone watching is counting the same seconds to the same moment.
Use presets for dates that never move, or set your own for birthdays, exams, product launches and trips. Fullscreen mode turns the timer into a projection-ready display for events and classrooms.
When the clock actually matters
This countdown timer is for anyone tracking a hard deadline — a product launch, an exam date, a settlement window, or a personal milestone. Unlike calendar reminders that fire once, it gives you a persistent, live readout down to the second. Set your target date once and the display keeps ticking whether the tab stays open or you return later. It is useful when you need constant visibility into shrinking time rather than a one-off alert, and when estimating “about two weeks” is not precise enough.
Setting your target date and time
- Enter the target date you are counting down to using the date picker field.
- Type or select the exact time of day your deadline occurs in the time field.
- Confirm the countdown direction is set to count down rather than up.
- Press the start button to begin the live countdown display immediately.
- Glance at the days, hours, minutes, and seconds readout as it updates continuously.