BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Make a Calendar//Week Number//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
UID:mac-week-1977-W40@make-a-calendar.com
DTSTAMP:20260920T182106Z
DTSTART;VALUE=DATE:19771003
DTEND;VALUE=DATE:19771010
SUMMARY:ISO Week 40, 1977
DESCRIPTION:Monday–Sunday · 1977-W40 · Oct 3 – Oct 9, 1977
URL:https://make-a-calendar.com/week-number/1977/40
END:VEVENT
END:VCALENDAR