BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//time.you/holidays//NONSGML v1.0//EN
BEGIN:VEVENT
UID:0d688172-6380-4e42-a5c2-3a135054257d
DTSTAMP:20260420T002113Z
DTSTART;VALUE=DATE:20261225
SUMMARY:Christmas Day (Bulgaria)
END:VEVENT
END:VCALENDAR