BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Make a Calendar//Week Number//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
UID:mac-week-2031-W4@make-a-calendar.com
DTSTAMP:20260913T193300Z
DTSTART;VALUE=DATE:20310120
DTEND;VALUE=DATE:20310127
SUMMARY:ISO Week 4, 2031
DESCRIPTION:Monday–Sunday · 2031-W04 · Jan 20 – Jan 26, 2031
URL:https://make-a-calendar.com/week-number/2031/4
END:VEVENT
END:VCALENDAR