Working with Date and Time
Date and time values are notoriously hard to work with for a variety of reasons, most of which have to do with globalization. Different calendar systems exist, people live in different time zones, representation of dates can be done in a number of ways, and so on. The designers of the .NET Framework tried hard to accommodate all those needs using just a handful of types. And quite frankly, they did quite a good job of it, with only one introduction of a new type in .NET 2.0 to compensate for the lack of a good solution to time offsets relative to universal coordinated time (UTC) time.
Absolute Time and DateTime
The first notion we need is that of absolute time.
DateTime is the struct that’s used to represent such values, ...