NSDate *now = [NSDate date];
NSCalendar *calendar = [NSCalendar currentCalendar];
NSInteger year = [calendar component:NSCalendarUnitYear fromDate:now];
NSInteger month = [calendar component:NSCalendarUnitMonth fromDate:now];
NSInteger day = [calendar component:NSCalendarUnitDay fromDate:now];
NSInteger hour = [calendar component:NSCalendarUnitHour fromDate:now];
NSInteger minute = [calendar component:NSCalendarUnitMinute fromDate:now];
NSInteger second = [calendar component:NSCalendarUnitSecond fromDate:now];
NSInteger dayOfWeek = [calendar component:NSCalendarUnitWeekday fromDate:now];