More information at : https://icalendar.org/iCalendar-RFC-5545/3-8-5-3-recurrence-rule.html
The pertinent line is
RRULE:FREQ=MONTHLY;BYDAY=1TH,3TH
BEGIN:VCALENDAR | |
PRODID:-//Google Inc//Google Calendar 70.9054//EN | |
VERSION:2.0 | |
CALSCALE:GREGORIAN | |
METHOD:PUBLISH | |
X-WR-CALNAME:Temp | |
X-WR-TIMEZONE:America/Los_Angeles | |
BEGIN:VTIMEZONE | |
TZID:America/Los_Angeles | |
X-LIC-LOCATION:America/Los_Angeles | |
BEGIN:DAYLIGHT | |
TZOFFSETFROM:-0800 | |
TZOFFSETTO:-0700 | |
TZNAME:PDT | |
DTSTART:19700308T020000 | |
RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU | |
END:DAYLIGHT | |
BEGIN:STANDARD | |
TZOFFSETFROM:-0700 | |
TZOFFSETTO:-0800 | |
TZNAME:PST | |
DTSTART:19701101T020000 | |
RRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU | |
END:STANDARD | |
END:VTIMEZONE | |
BEGIN:VEVENT | |
DTSTART;TZID=America/Los_Angeles:20230202T180000 | |
DTEND;TZID=America/Los_Angeles:20230202T223000 | |
RRULE:FREQ=MONTHLY;BYDAY=1TH,3TH | |
DTSTAMP:20230130T190203Z | |
UID:3vt2j24piiunfpgf38oh4bgvl4@google.com | |
CREATED:20230130T190142Z | |
DESCRIPTION: | |
LAST-MODIFIED:20230130T190142Z | |
LOCATION: | |
SEQUENCE:0 | |
STATUS:CONFIRMED | |
SUMMARY:Test | |
TRANSP:OPAQUE | |
END:VEVENT | |
END:VCALENDAR |
More information at : https://icalendar.org/iCalendar-RFC-5545/3-8-5-3-recurrence-rule.html
The pertinent line is
RRULE:FREQ=MONTHLY;BYDAY=1TH,3TH