BEGIN:VCALENDAR
VERSION:2.0
PRODID:icalendar-ruby
CALSCALE:GREGORIAN
BEGIN:VTIMEZONE
TZID:America/Chicago
BEGIN:DAYLIGHT
DTSTART:20240310T030000
TZOFFSETFROM:-0600
TZOFFSETTO:-0500
RRULE:FREQ=YEARLY;BYDAY=2SU;BYMONTH=3
TZNAME:CDT
END:DAYLIGHT
BEGIN:STANDARD
DTSTART:20231105T010000
TZOFFSETFROM:-0500
TZOFFSETTO:-0600
RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=11
TZNAME:CST
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTAMP;TZID=America/Chicago:20260410T145045
UID:185841@calendar.wisc.edu
DTSTART;TZID=America/Chicago:20231127T142500
DTEND;TZID=America/Chicago:20231127T152500
DESCRIPTION:Safet Penjic (U. Primorska). Combinatorial structure and algebr
 aic characterizations of distance-regular digraphs
LOCATION:VIRTUAL
SUMMARY:Combinatorics Seminar
END:VEVENT
END:VCALENDAR