Set a date and watch the time left tick down to the second.
Choose the date you're waiting for, optionally a time of day, and the clock starts running immediately. The four figures update every second and keep running as long as the page is open — no refresh needed, and nothing is sent to a server.
Leave the time at 00:00 and the countdown targets the very start of your chosen day, which is the usual reading of "how many days until." Set an actual time when the moment matters more than the date: a flight at 06:40, a deadline at 17:00, a broadcast at 21:00. The difference is often a whole day on the display, so it's worth setting deliberately.
The target is interpreted in your device's own time zone. Set 1 January at 00:00 and you're counting to midnight where you are — not in London, not in New York. This is the behaviour you want for personal deadlines, and the thing to watch for when you share a countdown with someone in another country: they'll see the clock hit zero at their own local midnight, which may be hours away from yours.
Daylight saving is handled by your device. If a clock change falls between now and the target, the countdown absorbs it automatically — you may notice the total shift by an hour as the change passes.
The optional label is only there to make a shared link legible. Give it a name and the person you send it to opens the page already knowing what the clock is for, rather than staring at an unexplained number. Labels are carried in the link itself and stored nowhere else.
Pick a date in the past and the tool doesn't refuse it — it flips into counting up instead, showing how long ago the moment was. Useful for anniversaries, sober days, project start dates, or anything you're measuring from rather than toward.
The four buttons above the countdown fill in common targets: the next 1 January, one month out, 100 days out, and one year out. They're a shortcut for the date field, and you can adjust anything afterwards before starting.
The display only runs while the page is open, but nothing is lost when you close it. Copy the share link and reopening that URL restores the same countdown with the correct time remaining, because the target is stored in the link rather than on the page.
Not necessarily. The target time is read in each viewer's own time zone, so a countdown to midnight reaches zero at their midnight, not yours. If you need everyone hitting zero at the same instant, agree on one location's clock time and tell recipients which one you used.
Yes — that's what the time field is for. It defaults to 00:00, the start of the day, but accepts any time down to the minute. Seconds always count from zero of the minute you set.
The clock announces that the moment has arrived, then continues as a count-up showing how long has passed since. There's no alarm or notification — the page has no way to alert you when it isn't open.
No. Everything stays in your browser for as long as the page is open. The only way any of it travels is if you copy a share link and send it yourself, in which case the date and label live in the URL you sent.
Because a countdown measures a real gap in time, not a gap in calendar squares. With a target time set, the day figure only ticks over once a full 24 hours has passed, so at 18:00 the day before a 09:00 deadline the display reads 0 days and 15 hours rather than 1 day.