NSDateFormatter return wrong date + Swift

Question

Code :

let dateString = \"2016-04-02\"
    var formatter: NSDateFormatter = NSDateFormatter()
    formatter.timeZone = NSTimeZone(abbreviati         


        

Answer 1

Your date is perfectly good. :-) No pun intended.

I will elaborate more on what @HoaParis has answered.

First of all NSDate represents a moment in time. It is not a date time value at the given place. So NSDate representing midnight in Greenwich will be 5:30 in morning in India.

Now coming to your question. When you give a date format with out time the formatter will assume it to be mid night. Also if there is not timezone mentioned it will take the current time zone.

So '2016-04-02' represents '2016-04-02, 00:00:00' at your time zone. Your timezone is GMT+3 that means when it is midnight at your place it is still 21:00:00 hours of previous day at Greenwich i.e. UK.

As we discussed NSDate is a moment in time to the same NSDate object represents these two seemingly different times but in reality they are the same time moment.

When you print the date by default it will print the date with respect to GMT and not your time zone i.e 2016-04-01, 21:00:00. The formatter will take into account your time zone and make it '2016-04-02'