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Date & time tool

Countdown Timer

This countdown timer ticks down live to any date and event you set. Pick the day and time, name it if you'd like, and watch the days, hours, minutes, and seconds fall in real time. It reads your own device clock, so the count matches your local time, and it's free, private, and ready in seconds. It's perfect for holidays, launches, exams, weddings, or any deadline you're tracking.

  • Any date
  • Live tick
  • Name your event
  • Quick presets
  • Local time

Last updated June 17, 2026 Uses your local time Reviewed by the Calcowa team

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The countdown updates every second and uses your device's local time. Set a future date to start counting down.

The basics

How does a countdown timer work?

A countdown timer measures the gap between right now and a future moment, then shows it ticking down. This one takes your target date and time, subtracts the current moment from it, and breaks the difference into days, hours, minutes, and seconds. Every second it recalculates, so the display stays live. Because it reads your own device clock, the count matches your local time, and it doesn't need a connection to keep running while the tab's open. When the moment arrives, the count lands on zero, and if the date has already gone by, it says so rather than dropping below zero.

time left = target moment − now
Step by step

Setting a countdown, step by step

Here's the quick routine for any event you're waiting on:

  1. 1

    Pick the date and timeChoose the day, and set the time it'll happen.

  2. 2

    Name the eventAdd a label like 'Trip' so you'll know what's counting down.

  3. 3

    Or tap a presetLoad New Year or a quick date in one tap.

  4. 4

    Watch it tickThe timer counts down live, and you don't need to refresh.

Quick reference

Days into other units

When a countdown is far off, it helps to picture the wait a few ways. Here's how some common spans break down.

DaysWeeksHours
7 days1 week168 hours
30 daysabout 4.3 weeks720 hours
90 daysabout 12.9 weeks2,160 hours
100 daysabout 14.3 weeks2,400 hours
365 daysabout 52.1 weeks8,760 hours
FAQ

Frequently asked questions

You pick a target date and time, give it a name if you'd like, and the timer counts down live, refreshing every second right in your browser. It reads the clock on your own device, so the days, hours, minutes, and seconds you see are accurate to your local time zone. Nothing's sent to a server, and you can leave the tab open and it'll keep ticking.

Yes. Type the date and time of a birthday, a wedding, a launch, an exam, a vacation, or a deadline, and you'll get a live countdown to that moment. There are quick presets for New Year and other common dates, but a custom date works just as well. If the moment is far off, the timer shows the full breakdown in days so the wait is easy to read.

It uses your device's local time, so the countdown matches the clock on your phone or computer. If you're counting down to an event in another time zone, set the target time as it'll read on your own clock at that moment. For most personal countdowns, like a holiday at midnight, your local time is exactly what you want.

While the tab stays open, yes, the timer keeps ticking second by second. If you close the tab or refresh, just reopen the tool and set the same date, and it'll pick the count back up from wherever it is now. Because everything runs in your browser, there's no account and nothing to save, so it's quick to start over.

When the target moment arrives, the timer stops at zero and shows that the event is here. If you've already passed the date, it tells you the moment has gone by rather than running into negative numbers. That makes it handy for both looking ahead to something and checking whether a deadline has slipped past.

Yes, it's completely free, with no sign-up and no limit on how many countdowns you set. It runs entirely in your browser, so it's private and fast, and you can bookmark it for the next big day. Whether you're tracking one deadline or counting the sleeps until a trip, you'll have a live timer ready in seconds.

Keep going

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