Easter Helper

Added in version 2.6.

The Easter helper allows you to calculate both Western and Eastern dates for Easter any year. The full range of years is supported but calculating Easter date before the year 1583 is meaningless. This library uses the Gauss’s Easter algorithm.

Examples:

<?php

use Arokettu\Date\Easter;

// Catholic/Protestant Easter
echo Easter::gregorian(2026), PHP_EOL; // 2026-04-05
// Orthodox Easter in Gregorian Calendar
echo Easter::julian(2026), PHP_EOL; // 2026-04-12
// Orthodox Easter in Julian Calendar
echo Easter::julian(2026)->julian(), PHP_EOL; // 2026-03-30