share/de_LU.xml
<?xml version="1.0" encoding="UTF-8" ?>
<holidays xmlns="https://heigl.org/holidays"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="https://heigl.org/xml/xsd/holidays.xsd"
>
<date day="1" month="1" free="true">Neujahr</date>
<easter offset="0" free="false">Ostersonntag</easter>
<easter offset="1" free="true">Ostermontag</easter>
<date day="1" month="5" free="true">Tag der Arbeit</date>
<easter offset="40" free="true">Christi Himmelfahrt</easter>
<easter offset="49" free="true">Pfingstsonntag</easter>
<easter offset="50" free="true">Pfingstmontag</easter>
<date day="23" month="6" free="true">Nationalfeiertag</date>
<date day="15" month="8" free="true">Maria Himmelfahrt</date>
<date day="1" month="11" free="true">Allerheiligen</date>
<date day="25" month="12" free="true">Weihnachten</date>
<date day="26" month="12" free="true">Zweiter Weihnachtsfeiertag</date>
</holidays>