Over the past several months, I have been learning about how DateTime really works. It turns out that there are pitfalls in something that appears to be inherently simple. Here is a group of interesting work on the subject arranged by date.
Why Daylight Savings Time is Non-intuitive Raymond Chen blog
Coding Best Practices Using DateTime in the.NET Framework Dan Rogers MSDN article http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dndotnet/html/datetimecode.asp
New DateTime Best Practices Article BCL Team blog
DateTime Compatibility Issue Brad Abrams blog http://blogs.msdn.com/brada/archive/2004/02/17/74914.aspx
Representing Null DateTime Values in Code Scott Munro blog
Adding Emptiness to the DateTime class Eric Gunnerson blog
DateTime, Serialization and TimeZones Brad Abrams blog http://blogs.msdn.com/brada/archive/2004/04/13/112784.aspx
More on DateTime and TimeZones Brad Abrams blog http://blogs.msdn.com/brada/archive/2004/04/20/117279.aspx
DateTime FAQ Entries BCL Team blog http://blogs.msdn.com/BCLTeam/archive/2004/05/21/136918.aspx