BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Make a Calendar//Week Number//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
UID:mac-week-1980-W49@make-a-calendar.com
DTSTAMP:20260920T181344Z
DTSTART;VALUE=DATE:19801201
DTEND;VALUE=DATE:19801208
SUMMARY:ISO Week 49, 1980
DESCRIPTION:Monday–Sunday · 1980-W49 · Dec 1 – Dec 7, 1980
URL:https://make-a-calendar.com/week-number/1980/49
END:VEVENT
END:VCALENDAR