Number of day of current year in iOS

Question

I want to find number of day today is in current year. e.g, if today is Mar15, 2012 I should get 75(31 + 29 + 15). Or we can simply say that number of days between today and Jan01 of current year.

Answer 1

Use the ordinalityOfUnit method of the NSCalendar to get the day number in the year - specify the NSDayCalendarUnit inUnit:NSYearCalendarUnit

Swift

let calendar: Calendar = .autoupdatingCurrent
let dayOfTheYear = calendar.ordinality(of: .day, in: .year, for: Date())

Objective-C

NSCalendar *currentCalendar = [NSCalendar currentCalendar];
NSDate *today = [NSDate date];
NSInteger dc = [currentCalendar  
    ordinalityOfUnit:NSDayCalendarUnit 
    inUnit:NSYearCalendarUnit 
    forDate:today
];

gives 269 for Sept 25th 2012