BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Make a Calendar//Week Number//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
UID:mac-week-1981-W25@make-a-calendar.com
DTSTAMP:20260920T170551Z
DTSTART;VALUE=DATE:19810615
DTEND;VALUE=DATE:19810622
SUMMARY:ISO Week 25, 1981
DESCRIPTION:Monday–Sunday · 1981-W25 · Jun 15 – Jun 21, 1981
URL:https://make-a-calendar.com/week-number/1981/25
END:VEVENT
END:VCALENDAR