BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Make a Calendar//Week Number//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
UID:mac-week-1989-W4@make-a-calendar.com
DTSTAMP:20260829T225206Z
DTSTART;VALUE=DATE:19890123
DTEND;VALUE=DATE:19890130
SUMMARY:ISO Week 4, 1989
DESCRIPTION:Monday–Sunday · 1989-W04 · Jan 23 – Jan 29, 1989
URL:https://make-a-calendar.com/week-number/1989/4
END:VEVENT
END:VCALENDAR