BEGIN:VCALENDAR
PRODID:-//Mozilla.org/NONSGML Mozilla Calendar V1.1//EN
VERSION:2.0
BEGIN:VTIMEZONE
TZID:America/Chicago
BEGIN:DAYLIGHT
TZOFFSETFROM:-0600
TZOFFSETTO:-0500
TZNAME:CDT
DTSTART:19700308T020000
RRULE:FREQ=YEARLY;BYDAY=2SU;BYMONTH=3
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0500
TZOFFSETTO:-0600
TZNAME:CST
DTSTART:19701101T020000
RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=11
END:STANDARD
END:VTIMEZONE
BEGIN:VTODO
CREATED:20220206T055100Z
LAST-MODIFIED:20220206T055130Z
DTSTAMP:20220206T055130Z
UID:796d08f4-dd49-4749-94ba-6ce2ff0aae22
SUMMARY:Test
DTSTART;TZID=America/Chicago:20230201T230000
PERCENT-COMPLETE:0
BEGIN:VALARM
ACTION:DISPLAY
TRIGGER;VALUE=DURATION:-P50D
DESCRIPTION:Default Mozilla Description
END:VALARM
END:VTODO
END:VCALENDAR
