I'm looking at the webcal feed for DC10 here with evolution:

https://penta.debconf.org/dc10_schedule/schedule.en.ics

i see one set of times for each event (local time) when i'm using day or work-
week view.

When i use Week, Month, or List view, the times are all off, apparently by one
jump away from UTC.  I'm currently (and my system defaults to) in the
US/Eastern TZ, which is currently -0400 (EDT), and the events i'm looking at
are also marked in the feed as being stored in EDT.

for example, an event which i know starts at 10:00am is visible in week, month,
or list view as starting at 6:00am.  But when i hover over such an event, the
tooltip popup shows that same (mis)information, followed by *correct*
information about the time, with the string EDT listed after it.  (the event is
marked as EDT)

When i hover over an event stored in a local calendar, i only see one such time
stamp (with no visible TZ associated)

I'm attaching a screenshot of the misleading week view with a tooltip showing.