A countdown that knows the calendar
The ring above shows the days remaining until your next birthday, the exact calendar date, and the day of the week it falls on — handy for planning the party on the right weekend.
The ring itself tracks your progress through the current year of your life: it fills as the countdown shrinks, resetting to a full loop the day after each birthday.
Leap-day birthdays and the countdown
If you were born on 29 February, your countdown targets 1 March in common years (28 February in some countries). The real 29 February only arrives every four years — the calculator keeps the yearly rhythm consistent so your countdown is never ambiguous.