NSCalendarUnit val = NSCalendarUnitYear|NSCalendarUnitHour;
    NSCalendar* dupCal =  [[NSCalendar currentCalendar] copy];

    [dupCal setTimeZone:toTimeZone]; // setting to a different timezone
    NSDateComponents *dupComponents = [dupCal components:val fromDate:[NSDate date]];

    // print out the time and check
    NSLog(@"%ld", (long)[dupComponents hour]);