If DateTime is immutable, why does the following work?

Question

I thought I understood what Immutable meant, however I don\'t understand why the following compiles and works:

DateTime dt = DateTime.Now;

Console.WriteLine         


        

Answer 1

The answer is simple. DateTime is not immutable. It is a struct. And I don't know how it's possible to have an immutable struct.

If you do this:

DateTime d1 = DateTime.Now;
DateTime d2 = DateTime.Now;
d1 = d2;

Then, the struct d1 will be overwritten with d2's values.

(A DateTime really only has one value. If you run a decompiler it is a private field called "ticks" I believe.)

There is no reference stuff going on, or anything else funky.