iPhone:Find the current timezone offset in HOURS

Question

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

Answer 1

Use NSTimeZone's localTimeZone

NSTimeZone *timeZone = [NSTimeZone localTimeZone];
NSInteger seconds = [timeZone secondsFromGMT];
NSLog(@"TZ : %@ : Seconds %ld",[timeZone abbreviation],(long)seconds);

int h = (int)seconds / 3600;
int m = (int)seconds / 60 % 60;

NSString *strGMT = @"";
if (h>=0)
    strGMT = [NSString stringWithFormat:@"+%02d:%02d", h, m];
else
    strGMT = [NSString stringWithFormat:@"%03d:%02d", h, m];

NSLog(@"GMT -/+ HH:mm: %@",strGMT);