Convert date format - 2013-10-31T07:41:39+0000 to 2013-10-31 01:48:11 +0000

NSString *dateString = [stringDate substringToIndex:19]; 
NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
formatter.timeZone = [NSTimeZone localTimeZone];
formatter.dateFormat = @"yyyy-MM-dd'T'HH:mm:ss";
NSDate *theDate = [formatter dateFromString:dateString];
NSLog(@"%@",theDate);

formatter.dateFormat = @"MMM dd h:mma";
NSDateFormatter *df = [NSDateFormatter new];
[df setDateFormat:@"yyyy-MM-dd'T'HH:mm:ssZZZZZ"];

//Create the date assuming the given string is in GMT
df.timeZone = [NSTimeZone timeZoneForSecondsFromGMT:0];
NSDate *date = [df dateFromString:stringDate];

//Create a date string in the local timezone
df.timeZone = [NSTimeZone timeZoneForSecondsFromGMT:[NSTimeZone localTimeZone].secondsFromGMT];
df.dateFormat = @"MMM dd h:mma";
NSString *localDateString = [df stringFromDate:date];
NSLog(@"date = %@", localDateString);