How can I convert string date to NSDate?

Ios Problem Overview

I want to convert "2014-07-15 06:55:14.198000+00:00" this string date to NSDate in Swift.

Ios Solutions

Solution 1 - Ios

try this:

let dateFormatter = NSDateFormatter()
dateFormatter.dateFormat = /* find out and place date format from 
                            * http://userguide.icu-project.org/formatparse/datetime
                            */
let date = dateFormatter.dateFromString(/* your_date_string */)

For further query, check NSDateFormatter and DateFormatter classes of Foundation framework for Objective-C and Swift, respectively.

Swift 3 and later (Swift 4 included)

let dateFormatter = DateFormatter()
dateFormatter.dateFormat = /* date_format_you_want_in_string from
                            * http://userguide.icu-project.org/formatparse/datetime
                            */
guard let date = dateFormatter.date(from: /* your_date_string */) else {
   fatalError("ERROR: Date conversion failed due to mismatched format.")
}

// use date constant here

Solution 2 - Ios

Swift 4

import Foundation

let dateString = "2014-07-15" // change to your date format

var dateFormatter = DateFormatter()
dateFormatter.dateFormat = "yyyy-MM-dd"

let date = dateFormatter.date(from: dateString)
println(date)

Swift 3

import Foundation

var dateString = "2014-07-15" // change to your date format

var dateFormatter = NSDateFormatter()
dateFormatter.dateFormat = "yyyy-MM-dd"

var date = dateFormatter.dateFromString(dateString)
println(date)

I can do it with this code.

Solution 3 - Ios

 func convertDateFormatter(date: String) -> String
 {
    
    let dateFormatter = NSDateFormatter()
    dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss.SSSZ"//this your string date format
    dateFormatter.timeZone = NSTimeZone(name: "UTC")
    let date = dateFormatter.dateFromString(date)
    
    
    dateFormatter.dateFormat = "yyyy MMM EEEE HH:mm"///this is what you want to convert format
    dateFormatter.timeZone = NSTimeZone(name: "UTC")
    let timeStamp = dateFormatter.stringFromDate(date!)
    
    
    return timeStamp
}

Updated for Swift 3.

func convertDateFormatter(date: String) -> String
{
    
    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss.SSSZ"//this your string date format
    dateFormatter.timeZone = NSTimeZone(name: "UTC") as TimeZone!
    let date = dateFormatter.date(from: date)
    
    
    dateFormatter.dateFormat = "yyyy MMM EEEE HH:mm"///this is what you want to convert format
    dateFormatter.timeZone = NSTimeZone(name: "UTC") as TimeZone!
    let timeStamp = dateFormatter.string(from: date!)
    
    
    return timeStamp
}

Solution 4 - Ios

Details

Swift 4, Xcode 9.2
Swift 5, Xcode 10.2 (10E125)

Solution

import Foundation

extension DateFormatter {
    
    convenience init (format: String) {
        self.init()
        dateFormat = format
        locale = Locale.current
    }
}

extension String {
    
    func toDate (dateFormatter: DateFormatter) -> Date? {
        return dateFormatter.date(from: self)
    }
    
    func toDateString (dateFormatter: DateFormatter, outputFormat: String) -> String? {
        guard let date = toDate(dateFormatter: dateFormatter) else { return nil }
        return DateFormatter(format: outputFormat).string(from: date)
    }
}

extension Date {
    
    func toString (dateFormatter: DateFormatter) -> String? {
        return dateFormatter.string(from: self)
    }
}

Usage

var dateString = "14.01.2017T14:54:00"
let dateFormatter = DateFormatter(format: "dd.MM.yyyy'T'HH:mm:ss")
let date = Date()

print("original String with date:               \(dateString)")
print("date String() to Date():                 \(dateString.toDate(dateFormatter: dateFormatter)!)")
print("date String() to formated date String(): \(dateString.toDateString(dateFormatter: dateFormatter, outputFormat: "dd MMMM")!)")
let dateFormatter2 = DateFormatter(format: "dd MMM HH:mm")
print("format Date():                           \(date.toString(dateFormatter: dateFormatter2)!)")

Result

More information

About date format

Solution 5 - Ios

If you're going to need to parse the string into a date often, you may want to move the functionality into an extension. I created a sharedCode.swift file and put my extensions there:

extension String
{   
    func toDateTime() -> NSDate
    {
        //Create Date Formatter
        let dateFormatter = NSDateFormatter()

        //Specify Format of String to Parse
        dateFormatter.dateFormat = "yyyy-MM-dd hh:mm:ss.SSSSxxx"

        //Parse into NSDate
        let dateFromString : NSDate = dateFormatter.dateFromString(self)!

        //Return Parsed Date
        return dateFromString
    }
}

Then if you want to convert your string into a NSDate you can just write something like:

var myDate = myDateString.toDateTime()

Solution 6 - Ios

For Swift 3

func stringToDate(_ str: String)->Date{
    let formatter = DateFormatter()
    formatter.dateFormat="yyyy-MM-dd hh:mm:ss Z"
    return formatter.date(from: str)!
}
func dateToString(_ str: Date)->String{
    var dateFormatter = DateFormatter()
    dateFormatter.timeStyle=DateFormatter.Style.short
    return dateFormatter.string(from: str)
}

Solution 7 - Ios

The code fragments on this QA page are "upside down"...

The first thing Apple mentions is that you cache your formatter...

Link to Apple doco stating exactly how to do this:

> Cache Formatters for Efficiency > Creating a date formatter is not a cheap operation. ...cache a single instance...

Use a global...

let df : DateFormatter = {
    let formatter = DateFormatter()
    formatter.dateFormat = "yyyy-MM-dd"
    return formatter 
}()

Then simply use that formatter anywhere...

let s = df.string(from: someDate)

let d = df.date(from: someString)

Or use any of the other many, many convenient methods on DateFormatter.

It is that simple.

(If you write an extension on String, your code is completely "upside down" - you can't use any dateFormatter calls!)

Note that usually you will have a few of those globals .. such as "formatForClient" "formatForPubNub" "formatForDisplayOnInvoiceScreen" .. etc.

Solution 8 - Ios

Swift support extensions, with extension you can add a new functionality to an existing class, structure, enumeration, or protocol type.

You can add a new init function to NSDate object by extenging the object using the extension keyword.

extension NSDate
{
    convenience
    init(dateString:String) {
        let dateStringFormatter = NSDateFormatter()
        dateStringFormatter.dateFormat = "yyyyMMdd"
        dateStringFormatter.locale = NSLocale(localeIdentifier: "fr_CH_POSIX")
        let d = dateStringFormatter.dateFromString(dateString)!
        self.init(timeInterval:0, sinceDate:d)
    }
}

Now you can init a NSDate object using:

let myDateObject = NSDate(dateString:"2010-12-15 06:00:00")

Solution 9 - Ios

Since Swift 3, many of the NS prefixes have been dropped.

let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss.SSSZ" 
/* date format string rules
 * http://userguide.icu-project.org/formatparse/datetime
 */
    
let date = dateFormatter.date(from: dateString)

Solution 10 - Ios

Swift 3,4:

2 useful conversions:

string(from: Date) // to convert from Date to a String
date(from: String) // to convert from String to Date

Usage: 1.

let date = Date() //gives today's date
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "dd.MM.yyyy"
let todaysDateInUKFormat = dateFormatter.string(from: date)

 let someDateInString = "23.06.2017"
 var getDateFromString = dateFormatter.date(from: someDateInString)

Solution 11 - Ios

FOR SWIFT 3.1

func convertDateStringToDate(longDate: String) -> String{
    
    /* INPUT: longDate = "2017-01-27T05:00:00.000Z"
     * OUTPUT: "1/26/17"
     * date_format_you_want_in_string from
     * http://userguide.icu-project.org/formatparse/datetime
     */
    
    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss.SSSZ"
    let date = dateFormatter.date(from: longDate)
    
    if date != nil {
        
        let formatter = DateFormatter()
        formatter.dateStyle = .short
        let dateShort = formatter.string(from: date!)
        
        return dateShort
        
    } else {
        
        return longDate
        
    }
}

NOTE: THIS WILL RETURN THE ORIGINAL STRING IF ERROR

Solution 12 - Ios

To add String within Date Format in Swift, I did this

 var dataFormatter:NSDateFormatter = NSDateFormatter()
                dataFormatter.dateFormat = "dd-MMMM 'at' HH:mm a"

cell.timeStamplbl.text = dataFormatter.stringFromDate(object.createdAt)

Solution 13 - Ios

This work for me..

    import Foundation
    import UIKit
    
    //dateString = "01/07/2017"
    private func parseDate(_ dateStr: String) -> String {
            let simpleDateFormat = DateFormatter()
            simpleDateFormat.dateFormat = "dd/MM/yyyy" //format our date String
            let dateFormat = DateFormatter()
            dateFormat.dateFormat = "dd 'de' MMMM 'de' yyyy" //format return
            
            let date = simpleDateFormat.date(from: dateStr)
            return dateFormat.string(from: date!)
    }

Solution 14 - Ios

You can try this swift code

    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "dd/MM/yyyy"//same as strDate date formator
    dateFormatter.timeZone = TimeZone(abbreviation: "GMT+0:00")//Must used if you get one day less in conversion
    let convertedDateObject = dateFormatter.date(from: strDate)

Solution 15 - Ios

Below are some string to date format converting options can be usedin swift iOS.

Thursday, Dec 27, 2018 format= EEEE, MMM d, yyyy
12/27/2018 format= MM/dd/yyyy
12-27-2018 09:59 format= MM-dd-yyyy HH:mm
Dec 27, 9:59 AM format= MMM d, h:mm a
December 2018 format= MMMM yyyy
Dec 27, 2018 format= MMM d, yyyy
Thu, 27 Dec 2018 09:59:19 +0000 format= E, d MMM yyyy HH:mm:ss Z
2018-12-27T09:59:19+0000 format= yyyy-MM-dd'T'HH:mm:ssZ
27.12.18 format= dd.MM.yy
09:59:19.815 format= HH:mm:ss.SSS

Solution 16 - Ios

Swift: iOS
if we have string, convert it to NSDate,

var dataString = profileValue["dob"] as String
var dateFormatter = NSDateFormatter()
dateFormatter.dateFormat = "MM-dd-yyyy"

// convert string into date
let dateValue:NSDate? = dateFormatter.dateFromString(dataString)

if you have and date picker parse date like this

// to avoid any nil value
if let isDate = dateValue {
self.datePicker.date = isDate
}

Solution 17 - Ios

SWIFT 5, Xcode 11.0

Pass your (date in string) in "dateString" and in "dateFormat" pass format you want. To choose format, use NDateFormatter website.

func getDateFrom(dateString: String, dateFormat: String) -> Date? {
    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = dateFormat
    dateFormatter.locale = Locale(identifier: "en_US")
    guard let date = dateFormatter.date(from: dateString) else {return nil}
    return date
}

Solution 18 - Ios

import Foundation

let now : String = "2014-07-16 03:03:34 PDT"
var date : NSDate
var dateFormatter : NSDateFormatter

date = dateFormatter.dateFromString(now)

date // $R6: __NSDate = 2014-07-16 03:03:34 PDT

https://developer.apple.com/library/prerelease/mac/documentation/Cocoa/Reference/Foundation/Classes/NSDateFormatter_Class/index.html#//apple_ref/doc/uid/20000447-SW32

Content Type	Original Author	Original Content on Stackoverflow
Question	Shardul	View Question on Stackoverflow
Solution 1 - Ios	x4h1d	View Answer on Stackoverflow
Solution 2 - Ios	Kiattisak Anoochitarom	View Answer on Stackoverflow
Solution 3 - Ios	idris yıldız	View Answer on Stackoverflow
Solution 4 - Ios	Vasily Bodnarchuk	View Answer on Stackoverflow
Solution 5 - Ios	user2266987	View Answer on Stackoverflow
Solution 6 - Ios	Rishabh Dugar	View Answer on Stackoverflow
Solution 7 - Ios	Fattie	View Answer on Stackoverflow
Solution 8 - Ios	Hugo Pereira	View Answer on Stackoverflow
Solution 9 - Ios	toddg	View Answer on Stackoverflow
Solution 10 - Ios	Naishta	View Answer on Stackoverflow
Solution 11 - Ios	Brian	View Answer on Stackoverflow
Solution 12 - Ios	ioopl	View Answer on Stackoverflow
Solution 13 - Ios	marlonpya	View Answer on Stackoverflow
Solution 14 - Ios	Rahul Panzade	View Answer on Stackoverflow
Solution 15 - Ios	Devesh	View Answer on Stackoverflow
Solution 16 - Ios	Vinod Joshi	View Answer on Stackoverflow
Solution 17 - Ios	Abdul Karim Khan	View Answer on Stackoverflow
Solution 18 - Ios	Ch0c0late	View Answer on Stackoverflow