BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Make a Calendar//Week Number//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
UID:mac-week-1978-W52@make-a-calendar.com
DTSTAMP:20260920T181300Z
DTSTART;VALUE=DATE:19781225
DTEND;VALUE=DATE:19790101
SUMMARY:ISO Week 52, 1978
DESCRIPTION:Monday–Sunday · 1978-W52 · Dec 25 – Dec 31, 1978
URL:https://make-a-calendar.com/week-number/1978/52
END:VEVENT
END:VCALENDAR