BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Make a Calendar//Week Number//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
UID:mac-week-1989-W1@make-a-calendar.com
DTSTAMP:20260829T192543Z
DTSTART;VALUE=DATE:19890102
DTEND;VALUE=DATE:19890109
SUMMARY:ISO Week 1, 1989
DESCRIPTION:Monday–Sunday · 1989-W01 · Jan 2 – Jan 8, 1989
URL:https://make-a-calendar.com/week-number/1989/1
END:VEVENT
END:VCALENDAR