.NET time-travel or the lost hour of DST

Every year again comes the DST change...

And every year again .NET developers get confused about a whole hour mysteriously missing from their logs. Others, in contrast, seem to experience an unwelcome déjà vu and to encounter things twice.

In this brief article I discuss how the DateTime type causes many of these problems and give a few tips on using the DateTimeOffset type to avoid most of the problems associated with DateTime in the context of DST transitions.