Question

I got a NSDate for example 1/6 -12 (Friday) and trying to find out what weekday it is. My week starts at Monday so Friday should be weekday 5.

    NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
    [calendar setFirstWeekday:2];
    NSDateComponents *components = [calendar components:NSWeekdayCalendarUnit fromDate:firstOfJulyDate];
    NSLog(@"weekday %i",components.weekday);

Output: weekday 6

Doesn’t matter what i set setFirstWeekday to, output will always be 6.
What am i doing wrong?

Answer 1

Try doing something like this:

NSCalendar *gregorian = [[[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar] autorelease];
[gregorian setFirstWeekday:2]; // Sunday == 1, Saturday == 7
NSUInteger adjustedWeekdayOrdinal = [gregorian ordinalityOfUnit:NSWeekdayCalendarUnit inUnit:NSWeekCalendarUnit forDate:[NSDate date]];
NSLog(@"Adjusted weekday ordinal: %d", adjustedWeekdayOrdinal);