BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//time.now/holidays//NONSGML v1.0//EN
BEGIN:VEVENT
UID:618c3571-f382-4041-82ce-d3983556d353
DTSTAMP:20260420T182634Z
DTSTART;VALUE=DATE:20260330
SUMMARY:Seward's Day (États-Unis)
END:VEVENT
END:VCALENDAR