CODEWITHSUNDEEP
swiftdatedatetimensdatensdateformatter
Ryan Cocuzzo
Ryan Cocuzzo

Reputation: 3219

Getting Date and Time Swift

I have been looking into retrieving the date and time in Swift and this is the recommended strategy for getting a short, readable Date/Time output:

let currentDate = NSDate()
    let formatter = NSDateFormatter()
    formatter.locale = NSLocale.currentLocale() 
    formatter.dateStyle = .ShortStyle
    formatter.timeStyle = .ShortStyle

    let convertedDate = formatter.dateFromString(currentDate) //ERROR HERE

  print("\n\(convertedDate)")

but this throws an Exception saying that currentDate is not a valid parameter to be passed because it is of type NSDate instead of String

Can you help me understand why this is the case? I have only found similar approaches to this when retrieving Date and Time. Thank you very much, all help is appreciated!

Upvotes: 1

Views: 210

Answers (3)

Jeet
Jeet

Reputation: 5659

Here is exactly how you can do it in swift 3 syntax -

let currentDate = NSDate()
let formatter = DateFormatter()
formatter.locale = Locale.current
formatter.dateStyle = .short
formatter.timeStyle = .short

let convertedDate = formatter.string(from: currentDate as Date)

BR

Upvotes: 1

Edison
Edison

Reputation: 11987

Leo Dabus wrote a good extension for getting a String from NSDate in this Question by Friso Buurman. Obrigado Leo 🙇🏽👍🏽

Mods please note: I have borrowed from it and re-written it because the original code used the same variable names for the declaration of the static constants , string variables and argument parameters which can be confusing for new coders.

It's a great extension by Leo and it contains mostly NSDateFormatter boiler-plate code you can find in the Apple docs.

Swift 2

extension NSDateFormatter {
convenience init(stringDateFormat: String) {
    self.init()
    self.dateFormat = stringDateFormat
}
}

extension NSDate {
struct Formatter {
    static let newDateFormat = NSDateFormatter(stringDateFormat: "dd-MM-yyyy")
}
var myNewDate: String {
    return Formatter.newDateFormat.stringFromDate(self)
}
}

Console Output:

print(NSDate().myNewDate)  // "05-07-2016\n"

Swift 3

extension DateFormatter {
convenience init(stringDateFormat: String) {
    self.init()
    self.dateFormat = stringDateFormat
}
}

extension Date {
struct Formatter {
    static let newDateFormat = DateFormatter(stringDateFormat: "dd-MM-yyyy")
}
var myNewDate: String {
    return Formatter.newDateFormat.string(from: self)
}
}

Console Output:

print(Date().myNewDate)  // "05-07-2016\n"

Upvotes: 0

Andrew
Andrew

Reputation: 15377

You really want to go from a NSDate to a String, so use stringFromDate:

let convertedDate = formatter.stringFromDate(currentDate)

Upvotes: 3

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