Example of displaying an NSDate in different timezones

gistfile1.txt

NSDate *date = [NSDate date];
    
    NSTimeZone *timeZoneCST = [NSTimeZone timeZoneWithAbbreviation:@"CST"];
    NSTimeZone *timeZoneEST = [NSTimeZone timeZoneWithAbbreviation:@"EST"];
    
    NSDateFormatter *formatter = [NSDateFormatter new];
    formatter.dateStyle = NSDateFormatterShortStyle;
    formatter.timeStyle = NSDateFormatterShortStyle;
    
    formatter.timeZone = [NSTimeZone systemTimeZone];
    NSLog(@"%@: %@", formatter.timeZone, [formatter stringFromDate:date]);
    
    formatter.timeZone = timeZoneCST;
    NSLog(@"%@: %@", formatter.timeZone, [formatter stringFromDate:date]);
    
    formatter.timeZone = timeZoneEST;
    NSLog(@"%@: %@", formatter.timeZone, [formatter stringFromDate:date]);