NSDate independent of timezone?

Question

I have an app that displays a timetable of certain ferry trips.

If I travel to a different timezone - say 4 hours behind, a 10am ferry trip now shows up as 6am?

Answer 1

You can also use the NSDateComponents class as described by apple's reference:

If you need to create a date that is independent of timezone, you can store the date as an NSDateComponents object—as long as you store some reference to the corresponding calendar.

In iOS, NSDateComponents objects can contain a calendar, a timezone, and a date object. You can therefore store the calendar along with the components. If you use the date method of the NSDateComponents class to access the date, make sure that the associated timezone is up-to-date.

https://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/DatesAndTimes/Articles/dtTimeZones.html#//apple_ref/doc/uid/20000185-SW1