BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//time.you/holidays//NONSGML v1.0//EN
BEGIN:VEVENT
UID:ee55548b-0bd1-4335-9d36-8a4c6689d077
DTSTAMP:20260421T133943Z
DTSTART;VALUE=DATE:20260621
SUMMARY:Midwinter Day (Antarctica)
END:VEVENT
END:VCALENDAR