BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//time.now/holidays//NONSGML v1.0//EN
BEGIN:VEVENT
UID:610d7019-b65a-4a95-848a-220f67da6e5d
DTSTAMP:20260422T223816Z
DTSTART;VALUE=DATE:20261226
SUMMARY:Second Day of Christmas (Polonia)
END:VEVENT
END:VCALENDAR