Weird behavior when creating an NSDate of January the 1st and the 2nd

Question

I\'m creating a date like this :

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

NSDateFormatter *dateFormatter = [         


        

Answer 1

See the Unicode standard. "yyyy" (lower case) gives you the year, but "YYYY" (upper case) gives you the year for the date's week (that is, if the date is within the 52nd week of the last year, YYYY will be last year).