BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Make a Calendar//Week Number//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
UID:mac-week-1975-W1@make-a-calendar.com
DTSTAMP:20260920T170823Z
DTSTART;VALUE=DATE:19741230
DTEND;VALUE=DATE:19750106
SUMMARY:ISO Week 1, 1975
DESCRIPTION:Monday–Sunday · 1975-W01 · Dec 30 – Jan 5, 1975
URL:https://make-a-calendar.com/week-number/1975/1
END:VEVENT
END:VCALENDAR