NSDate *today = [NSDate date];
NSCalendar *c = [NSCalendarcurrentCalendar];
NSRange days = [c rangeOfUnit:NSDayCalendarUnitinUnit:NSMonthCalendarUnitforDate:today];
int length = days.length;
NSDate *today = [NSDate date];
NSCalendar *c = [NSCalendarcurrentCalendar];
NSRange days = [c rangeOfUnit:NSDayCalendarUnitinUnit:NSMonthCalendarUnitforDate:today];
int length = days.length;