This file can be used to add scheduled events to your calendar, however every program is unique. Below you will find what information is available, but if nothing else works try creating a new calendar in your program and using
http://math.colorado.edu/seminars/ics/init.ics
as the source.
Thunderbird
A seminar for graduate students to help new graduate students bridge the gap between undergraduate and graduate mathematics. Topics include category theory, modules, tensor products, manifolds, and a survey of department research areas.