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Date Format in Swift

Lucas Hayes |

How will I convert this datetime from the date?

From this: 2016-02-29 12:24:26
to: Feb 29, 2016

So far, this is my code and it returns a nil value:

let dateFormatter = NSDateFormatter() dateFormatter.dateFormat = "MM-dd-yyyy" dateFormatter.timeZone = NSTimeZone(name: "UTC") let date: NSDate? = dateFormatter.dateFromString("2016-02-29 12:24:26") print(date)
0

24 Answers

This may be useful for who want to use dateformater.dateformat;

if you want 12.09.18 you use dateformater.dateformat = "dd.MM.yy"

Wednesday, Sep 12, 2018 --> EEEE, MMM d, yyyy 09/12/2018 --> MM/dd/yyyy 09-12-2018 14:11 --> MM-dd-yyyy HH:mm Sep 12, 2:11 PM --> MMM d, h:mm a September 2018 --> MMMM yyyy Sep 12, 2018 --> MMM d, yyyy Wed, 12 Sep 2018 14:11:54 +0000 --> E, d MMM yyyy HH:mm:ss Z 2018-09-12T14:11:54+0000 --> yyyy-MM-dd'T'HH:mm:ssZ 12.09.18 --> dd.MM.yy 10:41:02.112 --> HH:mm:ss.SSS

Here are alternatives:

  • era: G (AD), GGGG (Anno Domini)
  • year: y (2018), yy (18), yyyy (2018)
  • month: M, MM, MMM, MMMM, MMMMM
  • day of month: d, dd
  • day name of week: E, EEEE, EEEEE, EEEEEE
2

You have to declare 2 different NSDateFormatters, the first to convert the string to a NSDate and the second to print the date in your format.
Try this code:

let dateFormatterGet = NSDateFormatter() dateFormatterGet.dateFormat = "yyyy-MM-dd HH:mm:ss" let dateFormatterPrint = NSDateFormatter() dateFormatterPrint.dateFormat = "MMM dd,yyyy" let date: NSDate? = dateFormatterGet.dateFromString("2016-02-29 12:24:26") print(dateFormatterPrint.stringFromDate(date!))

Swift 3 and higher:

From Swift 3 NSDate class has been changed to Date and NSDateFormatter to DateFormatter.

let dateFormatterGet = DateFormatter() dateFormatterGet.dateFormat = "yyyy-MM-dd HH:mm:ss" let dateFormatterPrint = DateFormatter() dateFormatterPrint.dateFormat = "MMM dd,yyyy" if let date = dateFormatterGet.date(from: "2016-02-29 12:24:26") { print(dateFormatterPrint.string(from: date)) } else { print("There was an error decoding the string") }
7

Swift - 5.0

let date = Date() let format = date.getFormattedDate(format: "yyyy-MM-dd HH:mm:ss") // Set output format extension Date { func getFormattedDate(format: String) -> String { let dateformat = DateFormatter() dateformat.dateFormat = format return dateformat.string(from: self) } }

Swift - 4.0

2018-02-01T19:10:04+00:00 Convert Feb 01,2018

extension Date { static func getFormattedDate(string: String , formatter:String) -> String{ let dateFormatterGet = DateFormatter() dateFormatterGet.dateFormat = "yyyy-MM-dd'T'HH:mm:ssZ" let dateFormatterPrint = DateFormatter() dateFormatterPrint.dateFormat = "MMM dd,yyyy" let date: Date? = dateFormatterGet.date(from: "2018-02-01T19:10:04+00:00") print("Date",dateFormatterPrint.string(from: date!)) // Feb 01,2018 return dateFormatterPrint.string(from: date!); } }
0

Swift 3 and higher

let dateFormatter = DateFormatter() dateFormatter.dateStyle = .medium dateFormatter.timeStyle = .none dateFormatter.locale = Locale.current print(dateFormatter.string(from: date)) // Jan 2, 2001

This is also helpful when you want to localize your App. The Locale(identifier: ) uses the ISO 639-1 Code. See also the Apple Documentation

1

Swift 3 version with the new Date object instead NSDate:

let dateFormatterGet = DateFormatter() dateFormatterGet.dateFormat = "yyyy-MM-dd HH:mm:ss" let dateFormatter = DateFormatter() dateFormatter.dateFormat = "MMM dd,yyyy" let date: Date? = dateFormatterGet.date(from: "2017-02-14 17:24:26") print(dateFormatter.string(from: date!))

EDIT: after mitul-nakum suggestion

1

swift 3

let date : Date = Date() let dateFormatter = DateFormatter() dateFormatter.dateFormat = "MMM dd, yyyy" let todaysDate = dateFormatter.string(from: date)

I solved my problem to the format yyyy-MM-dd'T'HH:mm:ss.SSS'Z'(e.g 2018-06-15T00:00:00.000Z) with this:

func formatDate(date: String) -> String { let dateFormatterGet = DateFormatter() dateFormatterGet.dateFormat = "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'" let dateFormatter = DateFormatter() dateFormatter.dateStyle = .medium dateFormatter.timeStyle = .none // dateFormatter.locale = Locale(identifier: "en_US") //uncomment if you don't want to get the system default format. let dateObj: Date? = dateFormatterGet.date(from: date) return dateFormatter.string(from: dateObj!) }
0

Convert @BatyrCan answer to Swift 5.3 with extra formats. Tested in Xcode 12.

let dateFormatter = DateFormatter() dateFormatter.dateFormat = "HH:mm:ss" var dateFromStr = dateFormatter.date(from: "12:16:45")! dateFormatter.dateFormat = "hh:mm:ss a 'on' MMMM dd, yyyy" //Output: 12:16:45 PM on January 01, 2000 dateFormatter.dateFormat = "E, d MMM yyyy HH:mm:ss Z" //Output: Sat, 1 Jan 2000 12:16:45 +0600 dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ssZ" //Output: 2000-01-01T12:16:45+0600 dateFormatter.dateFormat = "EEEE, MMM d, yyyy" //Output: Saturday, Jan 1, 2000 dateFormatter.dateFormat = "MM-dd-yyyy HH:mm" //Output: 01-01-2000 12:16 dateFormatter.dateFormat = "MMM d, h:mm a" //Output: Jan 1, 12:16 PM dateFormatter.dateFormat = "HH:mm:ss.SSS" //Output: 12:16:45.000 dateFormatter.dateFormat = "MMM d, yyyy" //Output: Jan 1, 2000 dateFormatter.dateFormat = "MM/dd/yyyy" //Output: 01/01/2000 dateFormatter.dateFormat = "hh:mm:ss a" //Output: 12:16:45 PM dateFormatter.dateFormat = "MMMM yyyy" //Output: January 2000 dateFormatter.dateFormat = "dd.MM.yy" //Output: 01.01.00 //Customisable AP/PM symbols dateFormatter.amSymbol = "am" dateFormatter.pmSymbol = "Pm" dateFormatter.dateFormat = "a" //Output: Pm // Usage var timeFromDate = dateFormatter.string(from: dateFromStr) print(timeFromDate)

Swift 4, 4.2 and 5

func getFormattedDate(date: Date, format: String) -> String { let dateformat = DateFormatter() dateformat.dateFormat = format return dateformat.string(from: date) } let formatingDate = getFormattedDate(date: Date(), format: "dd-MMM-yyyy") print(formatingDate)
2

Swift 3 with a Date extension

extension Date { func string(with format: String) -> String { let dateFormatter = DateFormatter() dateFormatter.dateFormat = format return dateFormatter.string(from: self) } }

Then you can use it like so:

let date = Date() date.string(with: "MMM dd, yyyy")

iOS 15.0+

iPadOS 15.0+, macOS 12.0+, Mac Catalyst 15.0+, tvOS 15.0+, watchOS 8.0+, Xcode 13.0+

Use formatted(date:time:)

let now = Date.now let date = now.formatted(date: .abbreviated, time: .omitted)

Instead of .abbreviated, you may use another DateStyle such as .long, .numeric or define a custom format.

1

If you want to parse date from "1996-12-19T16:39:57-08:00", use the following format "yyyy-MM-dd'T'HH:mm:ssZZZZZ":

let RFC3339DateFormatter = DateFormatter() RFC3339DateFormatter.locale = Locale(identifier: "en_US_POSIX") RFC3339DateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ssZZZZZ" RFC3339DateFormatter.timeZone = TimeZone(secondsFromGMT: 0) /* 39 minutes and 57 seconds after the 16th hour of December 19th, 1996 with an offset of -08:00 from UTC (Pacific Standard Time) */ let string = "1996-12-19T16:39:57-08:00" let date = RFC3339DateFormatter.date(from: string)

from Apple 

 import UIKit // Example iso date time let isoDateArray = [ "2020-03-18T07:32:39.88Z", "2020-03-18T07:32:39Z", "2020-03-18T07:32:39.8Z", "2020-03-18T07:32:39.88Z", "2020-03-18T07:32:39.8834Z" ] let dateFormatterGetWithMs = DateFormatter() let dateFormatterGetNoMs = DateFormatter() // Formater with and without millisecond dateFormatterGetWithMs.dateFormat = "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'" dateFormatterGetNoMs.dateFormat = "yyyy-MM-dd'T'HH:mm:ss'Z'" let dateFormatterPrint = DateFormatter() dateFormatterPrint.dateFormat = "MMM dd,yyyy" for dateString in isoDateArray { var date: Date? = dateFormatterGetWithMs.date(from: dateString) if (date == nil){ date = dateFormatterGetNoMs.date(from: dateString) } print("===========>",date!) }
1

Another interessant possibility of format date. This screenshot belongs to Apple's App "News".

App screenshot

Here is the code:

let dateFormat1 = DateFormatter() dateFormat1.dateFormat = "EEEE" let stringDay = dateFormat1.string(from: Date()) let dateFormat2 = DateFormatter() dateFormat2.dateFormat = "MMMM" let stringMonth = dateFormat2.string(from: Date()) let dateFormat3 = DateFormatter() dateFormat3.dateFormat = "dd" let numDay = dateFormat3.string(from: Date()) let stringDate = String(format: "%@\n%@ %@", stringDay.uppercased(), stringMonth.uppercased(), numDay)

Nothing to add to alternative proposed by lorenzoliveto. It's just perfect.

let dateFormat = DateFormatter() dateFormat.dateFormat = "EEEE\nMMMM dd" let stringDate = dateFormat.string(from: Date()).uppercased()
3

just use below function to convert date format:-

 let convertedFormat = convertToString(dateString: "2019-02-12 11:23:12", formatIn: "yyyy-MM-dd hh:mm:ss", formatOut: "MMM dd, yyyy") //calling function print(convertedFormat) // feb 12 2019 func convertToString (dateString: String, formatIn : String, formatOut : String) -> String { let dateFormater = DateFormatter() dateFormater.timeZone = NSTimeZone(abbreviation: "UTC") as TimeZone! dateFormater.dateFormat = formatIn let date = dateFormater.date(from: dateString) dateFormater.timeZone = NSTimeZone.system dateFormater.dateFormat = formatOut let timeStr = dateFormater.string(from: date!) return timeStr }

To convert 2016-02-29 12:24:26 into a date, use this date formatter:

let dateFormatter = NSDateFormatter() dateFormatter.dateFormat = "yyyy-MM-dd hh:mm:ss"

Edit: To get the output Feb 29, 2016 use this date formatter:

let dateFormatter = NSDateFormatter() dateFormatter.dateFormat = "MMM dd, yyyy"
2

For Swift 4.2, 5

Pass date and format as whatever way you want. To choose format you can visit, NSDATEFORMATTER website: 

static func dateFormatter(date: Date,dateFormat:String) -> String { let dateFormatter = DateFormatter() dateFormatter.dateFormat = dateFormat return dateFormatter.string(from: date) }

Place it in extension and call it like below. It's easy to use throughout the application.

self.getFormattedDate(strDate: "20-March-2019", currentFomat: "dd-MMM-yyyy", expectedFromat: "yyyy-MM-dd")

Implementation

func getFormattedDate(strDate: String , currentFomat:String, expectedFromat: String) -> String{ let dateFormatterGet = DateFormatter() dateFormatterGet.dateFormat = currentFomat let date : Date = dateFormatterGet.date(from: strDate) ?? Date() dateFormatterGet.dateFormat = expectedFromat return dateFormatterGet.string(from: date) }

From iOS 15 use something like this:

extension Date { var string: String { if #available(iOS 15.0, *) { return self.formatted(date: .complete, time: .complete) } else { return self.description } } }

Swift Version: 5.6 + Above

DateFormatter’s dateFormatter property is used to format Date with a custom String Pattern.

let dateFormatter = DateFormatter() dateFormatter.dateFormat = "MMM dd, yyyy" let date = dateFormatter.string(from: datePicker.date) print(date) //Feb 28, 2022

If you want anything that shouldn’t be formatted and printed, then use single quotes around that word. Like; ‘at’

dateFormatter.dateFormat = "MMM dd, yyyy 'at' hh:MM a" // May 29, 2022 at 12:05 PM

These are all possible Patterns to Format Date, Time & Time Zone.

enter image description here

swift 3

func dataFormat(dataJ: Double) -> String { let dateFormatter = DateFormatter() dateFormatter.dateStyle = .long dateFormatter.timeStyle = .none let date = Date(timeIntervalSince1970: dataJ) return (dataJ != nil) ? "Today, \(dateFormatter.string(from: date))" : "Date Invalid" }

I recommend to add timezone by default. I will show an example for swift 5
1. new an extension file Date+Formatter.swift

import Foundation extension Date { func getFormattedDateString(format: String) -> String { let dateFormatter = DateFormatter() dateFormatter.dateFormat = format dateFormatter.timeZone = TimeZone.current return dateFormatter.string(from: self) } }
  1. Usage example
 let date = Date() let dateString = date.getFormattedDateString(format: "yyyy-MM-dd HH:mm:ss") print("dateString > \(dateString)") // print // dateString > 2020-04-30 15:15:21 
class Utils { class func dateFormatter(_ date: Date, _ format: String) -> String { let dateformat = DateFormatter() dateformat.dateFormat = format return dateformat.string(from: date) } } print(Utils.dateFormatter(Date(), "EEEE, MMM d, yyyy"))

Create class name Utils import same function and you can use globally accesss any where with your date and formate

Here is a full date format extension for swift

extension Date { func getFormattedDate(format: String) -> String { let dateformat = DateFormatter() dateformat.dateFormat = format return dateformat.string(from: self) } func getFormattedDate(style: DateFormatter.Style) -> String { let dateformat = DateFormatter() dateformat.dateStyle = style return dateformat.string(from: self) } }

Usage

myDate.getFormattedDate(style: .medium) //medium, short, full, long

OR

myDate.getFormattedDate(format: "yyyy/MM/dd HH:mm:ss")

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