How many days until my birthday — birthday countdown
How many days until your birthday? Set the date and Plinkr shows a live countdown — days, hours, minutes, seconds until the moment. No app, no account. The target date is encoded in the URL itself, so the same countdown is shareable across phones, laptops, and timezones. Works for your own birthday, a friend's, a kid's, or a milestone like a 30th or 50th. Your kid's seventh birthday is in November — set the target to November 14, paste the URL into the family group chat, and the grandparents see the same countdown ticking down on their phones in three different timezones. The number on each screen reflects each person's local clock, so a call at noon EST shows the right "days remaining" everywhere it lands. Web-based, no app to install — that's the advantage over app-store countdowns that need a per-device install before the recipient can see the number. The URL is the entire setup. Open it on a phone, on a laptop, on a shared screen at a party. Pin it as a tab in late October to watch the last few weeks tick down.
Frequently asked questions
Will the link still work after the birthday passes?
Yes. The countdown reads zero from the moment the target date passes and stays there until you set a new target. To roll the link forward to next year's birthday, open the page, change the target date by one year, copy the new URL, and share it again. Same URL pattern, fresh year.
Can multiple people see the same countdown across timezones?
Yes. The target date is encoded in the URL, so anyone with the link sees the same countdown — phones, tablets, laptops, shared TVs. Each person's screen shows the time in their own local timezone, so a recipient in New York and one in London see the right "days until" for their own clock.
Is it a clock that shows hours and minutes, or just days until my birthday?
All four units — days, hours, minutes, seconds — update live, so it works as a birthday countdown clock when the target is hours away and as a day-counter when it is months away. The display switches naturally as the date gets closer; no settings to toggle.
Can I add more than one birthday at once?
One per browser tab. Open multiple tabs to track multiple birthdays simultaneously — one for each kid, one for a partner, one for a friend's milestone. The URL is what carries the target, so bookmarking each tab's URL gives you a quick-launch list of all the birthdays you care about.