BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//time.bi/holidays//NONSGML v1.0//EN
BEGIN:VEVENT
UID:908c1a9d-2b03-40cc-a808-f210d97261c6
DTSTAMP:20260622T102905Z
DTSTART;VALUE=DATE:20260621
SUMMARY:Midwinter Day (Antarctica)
END:VEVENT
END:VCALENDAR