The Progress Bar

How long until Easter?

The bar runs from last Easter to the next one. The date moves every year and is calculated on the fly.

Easter is the movable feast: the first Sunday after the first full moon of spring, which sends it wandering between 22 March and 25 April.

The date is not written down anywhere here — it is computed with the Meeus algorithm for the Gregorian calendar, so this page will still be right in twenty years.