Build a live countdown to anything — a wedding, a trip, a birthday, the weekend — then copy the link and share it. Anyone who opens the link sees the same countdown.
When you start a countdown, the event name, date, and time are encoded right into the page's web address (for example, countdown.html?date=2026-12-25T09:00&title=Christmas%20morning). The "Copy share link" button copies that address. Send it to anyone — when they open it, they see your countdown ticking toward the same moment. No account, no app install, and the countdown keeps working even if you close your tab.
The countdown counts down to the date and time in the viewer's own timezone. That's perfect for personal events like birthdays. If you're coordinating across time zones (a flight departure, a global product launch), convert to the local time of each viewer first — a countdown shared between New York and London needs different clock times for the same physical moment.
Your countdowns are never stored on any server. Everything — the event name, the date, the ticking timer — lives in your browser and in the link itself.
Weddings and birthdays are the classics, but the same tool gets used for baby due dates, retirement days, exam results, visa expiries, sports finals, and the first morning of a long-earned holiday. A good rule of thumb: if the date matters enough that you'd work it out more than once, it's worth a countdown link you can bookmark or pin to your phone's home screen and check at a glance.
I only picked a date — what time does the countdown end? At midnight at the very start of that date, in the timezone of whoever is viewing it. If your event starts later in the day, add the time when you build the countdown; the shared link carries the time along with the date, so everyone sees the same finish.
What happens when it reaches zero? The display settles at zero and the page announces that your moment has arrived. The link keeps working afterwards, so a shared countdown doubles as a small keepsake of the day itself.
Can I change a countdown after I've shared it? The link is the countdown — the event details live in the web address, not in an account. To change anything, adjust the name, date, or time here and copy a fresh link. The old link keeps counting to the old plan, so remember to send the new one to the same people.
Does it work on a phone? Yes. Any modern browser shows the same live countdown, the page works the moment it loads, and there is nothing to install and no account to create.