BEGIN:VCALENDAR
VERSION:2.0
PRODID:icalendar-ruby
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VTIMEZONE
TZID:Europe/Moscow
BEGIN:STANDARD
DTSTART:19700101T000000
TZOFFSETFROM:+0300
TZOFFSETTO:+0300
TZNAME:MSK
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTAMP:20260419T120505Z
UID:174a55ac-0516-4074-8016-41277f0f7e3d
DTSTART;TZID=Europe/Moscow:20230902T133500
DTEND;TZID=Europe/Moscow:20230902T160500
DESCRIPTION:Glagoleva M.A. B23-311
LOCATION:B-204
SUMMARY:Subgroup 2
RRULE:FREQ=WEEKLY;UNTIL=20231216T160500;WKST=MO
EXDATE:20231104T133500
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260419T120505Z
UID:db63530f-48d0-44fc-af5d-8665c12d6b45
DTSTART;TZID=Europe/Moscow:20230906T143000
DTEND;TZID=Europe/Moscow:20230906T170000
DESCRIPTION:Glagoleva M.A. B23-107
LOCATION:B-204
SUMMARY:Subgroup 1
RRULE:FREQ=WEEKLY;UNTIL=20231220T170000;WKST=MO
END:VEVENT
END:VCALENDAR