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Tools / Countdown to a date

Countdown to a date

A live countdown to any date and time, in days, hours, minutes and seconds, with the total in each unit as well. Once the moment passes it counts up instead, which is just as useful for tracking how long something has been running.

Runs entirely in your browser

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About this tool

Set a target date and time and this tool shows a live countdown to it — days, hours, minutes and seconds ticking down — along with the total remaining expressed in each unit. It is the quick way to see exactly how long until a deadline, a flight, a launch or a birthday, without counting on your fingers.

Once the moment passes, it does not simply stop: it starts counting up, which is just as useful for tracking how long something has been running — an incident, a sobriety streak, time since a release. The same tool answers both “how long until” and “how long since”.

It runs in your browser and updates in real time, so you can leave it open as a live display. Because there is no account and nothing is uploaded, the dates you track stay entirely on your device.

Frequently asked questions

What happens when the countdown reaches zero?
It switches to counting up, showing how long has passed since the target moment. That makes it useful for tracking elapsed time as well as time remaining.
Can I count down to any date and time?
Yes. You choose the exact target date and time, and the tool shows the live remaining time in days, hours, minutes and seconds, plus the total in each unit.
Does it keep running if I leave the tab open?
Yes. It updates in real time in your browser, so you can keep it visible as a live countdown display.
Is it accurate to the second?
It updates every second against your device’s clock, so the display stays current to the second as time passes.
Is any of this stored online?
No. The countdown runs locally in your browser with no account, so the dates you enter are not sent to a server.

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