set alarm for selected days in iphone using LocalNotification

If you have the time which you have to fire notification every day, you should do this:----

NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];

    NSDateComponents *components = [[NSDateComponents alloc] init];

    for (NSMutableArray * alarmDayArr in self.reminderArr) {

        int count=[alarmDayArr count];

        if(!count){

            continue;

        }

        int day =0;

        int month=0;

        int year=0;

        int hour =0;

        int minutes=0;

        for ( int i=0;i<3;i++) {

            NSString * dayTime=[alarmDayArr objectAtIndex:i ];

            if (i==0) {

                day = [dayTime intValue];    

            }else if(i==1){

                month = [dayTime intValue];                    

            }else if(i==2){

                year = [dayTime intValue];    

            }

        }

        for ( int i=3;i<count;i++) {

            NSString * dayTime=[alarmDayArr objectAtIndex:i ];

            hour = [[dayTime substringToIndex:2] intValue];

            minutes = [[dayTime substringFromIndex:3] intValue];

            [components setDay:day];

            [components setMonth:month];

            [components setYear:year];

            [components setMinute:minutes];

            [components setHour:hour];

            NSDate *myNewDate = [calendar dateFromComponents:components];

            [self scheduleNotificationForDate:myNewDate];

        }

    }

    [components release];

    [calendar release];

then from here it will connect to the main notification firing method
[self scheduleNotificationForDate:myNewDate];

-(void) scheduleNotificationForDate: (NSDate*)date {

    /* Here we cancel all previously scheduled notifications */

    [[UIApplication sharedApplication] cancelAllLocalNotifications];

    UILocalNotification *localNotification = [[UILocalNotification alloc] init];

    localNotification.fireDate = date;

    NSLog(@"Notification will be shown on: %@ ",localNotification.fireDate);

    localNotification.timeZone = [NSTimeZone defaultTimeZone];

    localNotification.alertBody = @"Your Notification Text"; 

    localNotification.alertAction = NSLocalizedString(@"View details", nil);

    /* Here we set notification sound and badge on the app's icon "-1" 

     means that number indicator on the badge will be decreased by one 

     - so there will be no badge on the icon */

    localNotification.repeatInterval = NSDayCalendarUnit;

    localNotification.soundName = UILocalNotificationDefaultSoundName;

    localNotification.applicationIconBadgeNumber = -1;

    [[UIApplication sharedApplication] scheduleLocalNotification:localNotification];

}