DATETIME VS INT for storing time?

Question

Which one is best to use, DateTime or INT (Unix Timestamp) or anything else to store the time value?

I think INT will be better at performance and also more universa

Answer 1

Changing the client time zone The server interprets TIMESTAMP values in the client’s current time zone, not its own. Clients in different time zones should set their zone so that the server can properly interpret TIMESTAMP values for them.

And if you want to get the time zone that a certain one you can do this:

CONVERT_TZ(@dt,'US/Central','Europe/Berlin') AS Berlin,

I wouldn't store it in int, you should check out MySQL Cookbook by Paul DuBois he covers lot's of things in it.Also there is a big portion about your quetion.