Get all dates (not days) between two NSDates

Question

How can I get all the dates that come in between 2 dates?

For example: Start date = 2011/01/25 End date = 2011/02/03

possible duplicate of [Number of days between two NSDates](http://stackoverflow.com/questions/4739483/number-of-days-between-two-nsdates) — jscs, Sep 28 '11 at 05:58
@JoshCaswell the subject said "Not days" He want a listing of dates. — Black Frog, Sep 28 '11 at 07:47
@Black Frog: But imMobile has not bothered to indicate _at what interval_. `NSTimeInterval` is a `double`, with millisecond resolution. There are literally millions of "dates" in between any two. — jscs, Sep 28 '11 at 07:51
Yes, each millisecond is a different date in "Time & Space" but I believe he wants each day as 24 hour period. — Black Frog, Sep 28 '11 at 14:20

score 2 · Answer 1 · answered Sep 26 '15 at 00:27

NSCalendarUnit serves for defining the step between the dates & taking care of the dates being normalized.

iOS 8 API, Swift 2.0

    func generateDates(calendarUnit: NSCalendarUnit, startDate: NSDate, endDate: NSDate) -> [NSDate] {

            let calendar = NSCalendar.currentCalendar()
            let normalizedStartDate = calendar.startOfDayForDate(startDate)
            let normalizedEndDate = calendar.startOfDayForDate(endDate)

            var dates = [normalizedStartDate]
            var currentDate = normalizedStartDate

            repeat {

                currentDate = calendar.dateByAddingUnit(calendarUnit, value: 1, toDate: currentDate, options: NSCalendarOptions.MatchNextTime)!
                dates.append(currentDate)

            } while !calendar.isDate(currentDate, inSameDayAsDate: normalizedEndDate)

            return dates
    }

thanks. i'm using an objective-c version of this to complete my scenario. — kevinl, Sep 30 '15 at 21:05

score 2 · Answer 2 · edited May 23 '17 at 11:59

2

1) Find the no of days between two dates. Then,

for(i=0;i<noofdays;i++)
{
//Find the next date
//add to the array
}

To find number of days

To find next date

edited May 23 '17 at 11:59

Community

1
1

answered Sep 28 '11 at 04:48

KingofBliss

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score 0 · Answer 3 · edited Aug 26 '17 at 03:19

To find all days between two NSDates:

- (void)cerateDaysArray{
    _daysArray = [NSMutableArray new];
    NSCalendar *calendar = [[NSCalendaralloc]initWithCalendarIdentifier:NSGregorianCalendar];
    [calendar setTimeZone:[NSTimeZone systemTimeZone]];
    NSDate *startDate = [_minDate copy];
    NSDateComponents *deltaDays = [NSDateComponents new];
    [deltaDays setDay:1];
    [_daysArray addObject:startDate];
    while ([startDate compare:_maxDate] == NSOrderedAscending) {
       startDate = [calendar dateByAddingComponents:deltaDays toDate:startDate options:0];
       [_daysArray addObject:startDate];
   }
}

Get all dates (not days) between two NSDates

3 Answers3

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