How can I convert a Unix timestamp to DateTime and vice versa?

Question

There is this example code, but then it starts talking about millisecond / nanosecond problems.

The same question is on MSDN, Seconds since the Unix epoch in C#<

Answer 1

A Unix tick is 1 second (if I remember well), and a .NET tick is 100 nanoseconds.

If you've been encountering problems with nanoseconds, you might want to try using AddTick(10000000 * value).