A PHP script / API endpoint that will generate the Roman Catholic liturgical calendar for any given year, calculating the mobile festivities and the precedence of solemnities, feasts, memorials...

Calculation the date of Easter for Gregorian and Julian calendar

Easter Date Handler

A mixin for Carbon to provide dates of moveable feasts

Shows the Easter date for a given year using Gauss’ Algorithm in PHP

Converter between date in Milesian and Julian day.