How to fetch day, month and hour from NSDate in Swift

Question

I have an NSDate object called reservationDate and I want to fetch day, month and hour from the Date. However, I'm getting wrong values. How can I get these values?

The value of the reservationDate object reservationDate NSDate 2016-08-05 21:00:00 UTC thus I expect to get 5 as a day and 21 as a hour however I'm receiving 6 as a day and 0 as a hour. Should I expect something else?

let unitFlags: NSCalendarUnit = [.Hour, .Day, .Month, .Year]
let components = NSCalendar.currentCalendar().components(unitFlags, fromDate: reservationDate)
let day = components.day
let hour = components.hour

What result do you want? The hour as displayed on a wall clock in Greenwich (GMT/UTC) or the hour according to your location? — Martin R, Aug 05 '16 at 10:31

score 1 · Answer 1 · answered Aug 05 '16 at 10:26

Try to set timezone with Calendar object with UTC

let unitFlags: NSCalendarUnit = [.Hour, .Day, .Month, .Year]
let calendar = NSCalendar.currentCalendar()
calendar.timeZone = NSTimeZone(name: "UTC")!
let components = calendar.components(unitFlags, fromDate: NSDate())
let day = components.day
let hour = components.hour

score 1 · Accepted Answer · answered Aug 05 '16 at 10:27

1

You have not set Time zone. Please assign it "UTC".

NSCalendar.currentCalendar().timeZone = NSTimeZone(name: "UTC")!

answered Aug 05 '16 at 10:27

Apurv

17,116
8
51
67

score 0 · Answer 3 · answered Aug 05 '16 at 11:34

let currentDate = NSDate()
let dateFormatter = NSDateFormatter()
dateFormatter.dateStyle = NSDateFormatterStyle.FullStyle
var convertedDate = dateFormatter.stringFromDate(currentDate)
dateFormatter.dateFormat = "EEEE, MMMM dd, yyyy, HH:mm"
convertedDate = dateFormatter.stringFromDate(currentDate)

How to fetch day, month and hour from NSDate in Swift

3 Answers3