Date and time formatting with the formatCurrentDateTimeForTimeZone method for "Build a World Clock in Objective-C."

ViewController.m

-(NSArray *)formatCurrentDateTimeForTimeZone { //Gets current date each time it's fired.
         NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
         NSDateFormatter *timeFormatter = [[NSDateFormatter alloc] init];
         NSLocale *posix = [[NSLocale alloc] initWithLocaleIdentifier:@"en_US_POSIX"];
         NSTimeZone *localTimeZone = [NSTimeZone timeZoneWithAbbreviation:self.timeZone];
         [dateFormatter setLocale:posix];
         [dateFormatter setDateFormat:@"EEEE MMMM dd y"];
         [dateFormatter setTimeZone:localTimeZone];
         [timeFormatter setLocale:posix];
         [timeFormatter setDateFormat:@"h:mm:ss a"];
         [timeFormatter setTimeZone:localTimeZone];
         
         NSDate *now = [NSDate date];
         NSString *date = [dateFormatter stringFromDate:now];
         NSString *time = [timeFormatter stringFromDate:now];
         
         NSArray *formattedDateAndTime = @[date, time];
         return formattedDateAndTime;
     }