Birthday Countdown
Enter a birth date to see, live, the time remaining until the next birthday. The calculation is done entirely in your browser: your birth date is never sent to a server.
How It Works
From your birth date, the tool determines whether your birthday has already passed this year or not, targets the correct occurrence (this year or next year), then displays a countdown that updates every second until the big day, at midnight.
Does the calculation take into account the current year?
Yes: if this year's birthday has already passed, the tool automatically calculates the countdown to next year. If your birthday is today, a congratulation message is shown instead of the countdown.
Is my birth data stored anywhere?
No, the date you enter stays only in your browser's memory for the session: it is neither saved, nor sent to a server, nor reused after closing the page.
The calculation and countdown updates run 100% locally, with no network connection needed.