BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Make a Calendar//Week Number//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
UID:mac-week-1977-W4@make-a-calendar.com
DTSTAMP:20260920T182003Z
DTSTART;VALUE=DATE:19770124
DTEND;VALUE=DATE:19770131
SUMMARY:ISO Week 4, 1977
DESCRIPTION:Monday–Sunday · 1977-W04 · Jan 24 – Jan 30, 1977
URL:https://make-a-calendar.com/week-number/1977/4
END:VEVENT
END:VCALENDAR