BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//time.bi/holidays//NONSGML v1.0//EN
BEGIN:VEVENT
UID:afd2e888-5e9e-4767-bed5-676948a882d5
DTSTAMP:20260507T161511Z
DTSTART;VALUE=DATE:20261228
SUMMARY:Boxing Day (substitute day) (Guernsey)
END:VEVENT
END:VCALENDAR