iPhone:Find the current timezone offset in HOURS

Question

How to find out the current timezone offset on the device in HOURS ?

Answer 1

NSDate *sourceDate = [NSDate dateWithTimeIntervalSinceNow:3600 * 24 * 60];
NSTimeZone* destinationTimeZone = [NSTimeZone systemTimeZone];
float timeZoneOffset = [destinationTimeZone secondsFromGMTForDate:sourceDate] / 3600.0;
NSLog(@"sourceDate=%@ timeZoneOffset=%d", sourceDate, timeZoneOffset);

Answer 2

Don't use an int!!! I copied this code and now have a bug in my app. Some timezones are .5 hrs

use this:

float offset = [timezone secondsFromGMTForDate:self.date] / 3600.0;

and don't forget the .0 behind 3600