How can a Windows program temporarily change its time zone?

Question

I\'ve written a function to return the time_t value corresponding to midnight on a given day. When there is no midnight for a given day, it returns the earliest tim

Answer 1

Use Isolation/Mocking framework - the only one I know of at the moment is Isolator++ which is currently in beta, I'm sure that you can get a copy by asking for one from the good people of Typemock.