BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//some-deadlines//EN
METHOD:PUBLISH
X-WR-CALNAME:Some Deadlines
X-PUBLISHED-TTL:PT1H
BEGIN:VEVENT
UID:osdi2027-notification@some-deadlines
DTSTAMP:20260716T004123Z
DTSTART;VALUE=DATE:20270316
DTEND;VALUE=DATE:20270317
SUMMARY:[OSDI 2027] Notification
END:VEVENT
END:VCALENDAR