BEGIN:VCALENDAR
PRODID:-//eluceo/ical//2.0/EN
VERSION:2.0
CALSCALE:GREGORIAN
BEGIN:VTIMEZONE
TZID:Europe/Berlin
BEGIN:DAYLIGHT
DTSTART:20260404T003541
TZNAME:CEST
TZOFFSETTO:+0200
TZOFFSETFROM:+0200
END:DAYLIGHT
END:VTIMEZONE
END:VCALENDAR