I have a problem understanding the Microsoft c# APIs, here are my questions 1. In which order are the APIs organized?

Question

Question2. How many types namespace that deal with date time?

Question3. So far I believe it to be the system namespace is it true?

Question4. Microsoft. VisualBasic. Namespace also has the date and time in it. Why do we have date and time in system namespace and in Microsoft. VisualBasic. Namespace

Answer 1

A user made this graphic a while back. Your question reminded me of it. Perhaps it is useful to you

https://www.sololearn.com/post/1271692

Answer 2

I hope this explain better