When inserting the VCS events in Outlook, time are correctly only if I remove the check from "Automatically adjust clock for daylight saving changes" option in Windows Date and Time Properties, otherwise 1 hour is added to the event start and end time.

Could be a bug or a configuration problem?

Stety

The DNN Events module has a flaw in handling VCS export for events that occur during Daylight Saving Time. There is no configuration option to fix it.

I have provided code to partially fix it in the Events module. I better fix would be for DNN core itself to provide some user functions to convert "user time" to "UTC time". The code I provide is specific to the Events module only and only works for USA timezones.

See this post: http://dotnetnuke.com/Community/ForumsDotNetNuke/tabid/795/forumid/21/threadid/33125/scope/posts/Default.aspx