BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//time.you/holidays//NONSGML v1.0//EN
BEGIN:VEVENT
UID:55cfe022-3614-4fa9-aece-1ec454675b44
DTSTAMP:20260421T143456Z
DTSTART;VALUE=DATE:20261225
SUMMARY:Christmas Day (Hong Kong)
END:VEVENT
END:VCALENDAR