BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Make a Calendar//Week Number//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
UID:mac-week-1977-W51@make-a-calendar.com
DTSTAMP:20260920T182113Z
DTSTART;VALUE=DATE:19771219
DTEND;VALUE=DATE:19771226
SUMMARY:ISO Week 51, 1977
DESCRIPTION:Monday–Sunday · 1977-W51 · Dec 19 – Dec 25, 1977
URL:https://make-a-calendar.com/week-number/1977/51
END:VEVENT
END:VCALENDAR