I'm getting a dateFormat from the server like this:
2016-09-04T17:44:44+02:00
So I wrote a dateformatter:
private static let jsonDateFormatter: NSDateFormatter = {
let fmt = NSDateFormatter()
fmt.dateFormat = "yyyy-MM-dd'T'HH:mm:ss+SSS"
return fmt
}()
there is still a problem because when I do jsonDateFormatter.dateFromString it returns nil so the dateFormat must be wrong.
I don't see the problem.
As per the Documentation given on Apple Docs here
The correct formatter for this type of Dates will be
yyyy-MM-dd'T'HH:mm:ssZZZZZ
As it is used in the give example
let RFC3339DateFormatter = NSDateFormatter()
RFC3339DateFormatter.locale = NSLocale(localeIdentifier: "en_US_POSIX")
RFC3339DateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ssZZZZZ"
//RFC3339DateFormatter.timeZone = NSTimeZone(forSecondsFromGMT: 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.dateFromString(string)
Wrong format string, plus you should also read Apple's Q&A on parsing internet date:
private static let jsonDateFormatter: NSDateFormatter = {
let fmt = NSDateFormatter()
fmt.dateFormat = "yyyy-MM-dd'T'HH:mm:ssZZZZZ"
fmt.locale = NSLocale(localeIdentifier: "en_US_POSIX")
return fmt
}()
Related
This question already has answers here:
How can I parse / create a date time stamp formatted with fractional seconds UTC timezone (ISO 8601, RFC 3339) in Swift?
(13 answers)
Closed 3 years ago.
I am converting current date into GMT/UTC date string. But every time it returns me with wrong date.
My todays date is 07 February 2020, 11:09:20 AM. You can refer below image.
Here is my code :
let apiFormatter = DateFormatter()
//apiFormatter.dateStyle = DateFormatter.Style.long
//apiFormatter.timeStyle = DateFormatter.Style.long
//apiFormatter.calendar = Calendar.current
apiFormatter.timeZone = TimeZone.init(identifier: "GMT") //TimeZone(abbreviation: "UTC") //TimeZone.current //
//apiFormatter.locale = Locale.current
//apiFormatter.dateFormat = "yyyy-MM-DD HH:mm:ss"
apiFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'"
//apiFormatter.dateFormat = "yyyy-MM-dd'T'hh:mm:ssZ"
let endDate = apiFormatter.string(from: Date())
print(endDate)
And what I am getting in return is also you can check in image - 2020-02-38T05:33:34.598Z. I have tried with all the format, but no any luck. Can anyone suggest where it is going wrong?
First of all, the format should be:
apiFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss.SSSZ"
The Z is not a literal letter, it's the description of the time zone. However, making it a literal won't probably make a problem.
The 38 for day from your output is obviously caused by the DD format you have commented out.
Nevertheless, you have to set the locale:
apiFormatter.locale = Locale(identifier: "en_US_POSIX")
Otherwise you will have problems with 12/24h switching.
let apiFormatter = DateFormatter()
apiFormatter.locale = Locale(identifier: "en_US_POSIX")
// remove this if you want to keep your current timezone (shouldn't really matter, the time is the same)
apiFormatter.timeZone = TimeZone(secondsFromGMT: 0)
apiFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss.SSSZ"
let endDate = apiFormatter.string(from: Date())
print(endDate) // 2020-02-07T08:25:23.470+0000
print(Date()) // 2020-02-07 08:25:23 +0000
Also note that you can use ISO8601DateFormatter instead of DateFormatter.
Try this and adjust according to what format you are getting from server -
private func getFormatedDateInString(_ dateString: String) -> String? {
let dateFormatter = DateFormatter()
dateFormatter.locale = Locale(identifier: "en_US_POSIX")
dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss.SSSZ"
dateFormatter.timeZone = TimeZone(identifier: "UTC")
if let date = dateFormatter.date(from: dateString) {
dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss.SSSZ"
dateFormatter.timeZone = TimeZone.current
let timeStamp = dateFormatter.string(from: date)
return timeStamp
}
return nil
}
For date Input "00/02/02"
formating Style is yy/MM/dd
I am getting correct output like 02/01/2000
But issue is when trying with "00/01/01"
getting output like this '01/01/12100'
But I don't know why this year coming like 12100
My code is
let str = "00/01/01"
let inputFormatter = DateFormatter()
inputFormatter.dateFormat = "yy/MM/dd"
if let showDate = inputFormatter.date(from: str) {
inputFormatter.dateFormat = "dd/MM/yyyy"
let resultString = inputFormatter.string(from: showDate)
print(resultString)
}
year input type always as yy format.
As per the #MartinR suggestion
settinginputFormatter.defaultDate to current date or Date(timeIntervalSinceReferenceDate: 0) its worked fine
let str = "00/01/01"
let inputFormatter = DateFormatter()
inputFormatter.defaultDate = Date(timeIntervalSinceReferenceDate: 0)
inputFormatter.dateFormat = "yy/MM/dd"
if let showDate = inputFormatter.date(from: str) {
inputFormatter.dateFormat = "dd/MM/yyyy"
let resultString = inputFormatter.string(from: showDate)
print(resultString)
}
I managed to reproduce this bug by setting the timezone of the formatter, before getting the date from it, to your local timezone:
inputFormatter.timeZone = TimeZone(identifier: "Asia/Kolkata")
//Or
inputFormatter.timeZone = TimeZone(identifier: "Asia/Calcutta")
They both lead to 01/01/12100.
Actually, using a date format of yy/MM/dd hh:mm:ss, all dates starting from 00/01/01 00:00:00 to 00/01/01 05:29:59 give a year component of 12100. This is due to the time zone of Kolkata being offset by +05H30 from GMT. This is a bug.
Setting the timezone to UTC yields the desired output:
inputFormatter.timeZone = TimeZone(identifier: "UTC") //01/01/2000
This bug occurs with other timezones too:
inputFormatter.timeZone = TimeZone(identifier: "Africa/Addis_Ababa")
inputFormatter.timeZone = TimeZone(identifier: "Europe/Moscow")
inputFormatter.timeZone = TimeZone(identifier: "Asia/Hong_Kong")
Basically all timezones that have GMT + hh:mm
I've got a date stored in my database and I want to retrieve it and display it nicely in my tableview cells.
The format it comes in from the database and stored in option1 is BO05151530
Where the first two letters have meaning in the program but are not needed for the date so I take those off using the substringFromIndex function.
So what is left is 05151530 where it represents MMddhmm
I would like to display it nicely like MM-dd # h:mm a
For example 12-05 # 3:45 am
Here is what I tried but unfortunately ns_date1 comes up as nil each time.
What would you suggest I do?
let date1 = option1.substringFromIndex(option1.startIndex.advancedBy(2))
let dateFormatter = NSDateFormatter()
dateFormatter.dateFormat = "MMddhhmm"
let ns_date1 = dateFormatter.dateFromString(date1)
Try this. you don't need to separate BO NSDateFormatter can handle extra string
let dateFormatter = NSDateFormatter()
dateFormatter.dateFormat = "'BO'MMddHHmm"
let ns_date1 = dateFormatter.dateFromString("BO05151530")
dateFormatter.dateFormat = "'BO' MM-dd # hh':'mm a"
let string = dateFormatter.stringFromDate(ns_date1!)
try
dateFormatter.dateFormat = "MMddHHmm"
HH is 24 hour format and hh is 12 hour format. you need the 24 one
Check out this app, this will help you know the right format and give you code
https://itunes.apple.com/ae/app/date-format-creator/id965645209?mt=12
NOTE: you need to add year to get a correct NSDate
I have this function :
class func getTheDateString(stringForInputDate: String, fromFormat inputFormat: String, toFormat outputFormat: String) -> String {
let formatter: NSDateFormatter = NSDateFormatter()
formatter.dateFormat = inputFormat
formatter.timeZone = NSTimeZone.localTimeZone()
let dateForInput: NSDate = formatter.dateFromString(stringForInputDate)!
formatter.dateFormat = outputFormat
return formatter.stringFromDate(dateForInput)
}
and used it as:
let stringDate : String = "0515930" // "05151530"
if stringDate.lengthOfBytesUsingEncoding(NSUTF8StringEncoding) < 8 {
print([ViewControllerForScreen1 .getTheDateString(stringDate, fromFormat: "MMddHmm", toFormat: "MM-dd # h:mm a")]);
}else {
print([ViewControllerForScreen1 .getTheDateString(stringDate, fromFormat: "MMddHHmm", toFormat: "MM-dd # h:mm a")]);
}
OUTPUT:
["05-15 # 9:30 AM"]
["05-15 # 3:30 PM"]
in my app i am getting date in this format = "2016-02-15 10:49:59" bu i want to display it in this format "الأربعاء, 9 مارس, 2016 10:33 ص" so how can i do this?
i mage showing the format in which i want iot
You can make use of NSDateFormatter and locale "ar_DZ", with a custom format specification to fit your needs: "EEEE, d, MMMM, yyyy HH:mm a".
// input date in given format (as string)
let inputDateAsString = "2016-03-09 10:33:59"
// initialize formatter and set input date format
var formatter = NSDateFormatter()
formatter.dateFormat = "yyyy-MM-dd HH:mm:ss"
// read input date string as NSDate instance
if let date = formatter.dateFromString(inputDateAsString) {
// set locale to "ar_DZ" and format as per your specifications
formatter.locale = NSLocale(localeIdentifier: "ar_DZ")
formatter.dateFormat = "EEEE, d, MMMM, yyyy HH:mm a"
let outputDate = formatter.stringFromDate(date)
print(outputDate) // الأربعاء, 9 مارس, 2016 10:33 ص
}
Note that the above uses the default gregorian calendar (in so not translating e.g. year 2016 to year 1437 (/1438 ~October 2016) in the islamic calendar).
(Edit addition regarding your comment below)
If you change localeIdentifier above from "ar_DZ" to "ar", also numeric values gets written in arabic characters:
print(outputDate) // الأربعاء, ٩ مارس, ٢٠١٦ ١٠:٣٣ ص
However, I don't know arabic, so I can't really say if your image above displays that, and I'm no longer certain what you're trying to achieve; possibly this is not it.
Check this
let morningOfChristmasComponents = NSDateComponents()
morningOfChristmasComponents.year = 2014
morningOfChristmasComponents.month = 12
morningOfChristmasComponents.day = 25
morningOfChristmasComponents.hour = 7
morningOfChristmasComponents.minute = 0
morningOfChristmasComponents.second = 0
let morningOfChristmas = NSCalendar.currentCalendar().dateFromComponents(morningOfChristmasComponents)!
/***** NSDateFormatter Part *****/
let formatter = NSDateFormatter()
formatter.dateStyle = NSDateFormatterStyle.LongStyle
formatter.timeStyle = .MediumStyle
formatter.locale = NSLocale(localeIdentifier: "ar")
let dateString = formatter.stringFromDate(morningOfChristmas)
txtMarks.text = dateString
For solving of youre issue try to use legend way with NSCalendar style:
var today = NSDate()
let islamic = NSCalendar(identifier:NSCalendarIdentifierIslamicCivil)!
let formatter = NSDateFormatter()
formatter.dateStyle = .LongStyle
formatter.timeStyle = .MediumStyle
formatter.calendar = islamic
formatter.locale = NSLocale(localeIdentifier: "ar_DZ")
formatter.stringFromDate(today) // "30 جمادى الأولى، 1437 هـ، 11:22:10 ص"
To configure proper style set yore's dateStyle and timeStyle also set up youre NSLocale.
I am trying to parse some json which is the result of an oData connection and I am getting the following response from the server:
"Task_ID":24,"Equipment_ID":3,"Owner_ID":2,"Priority":5,"Date_Due":
"2015-04-08T19:37:56.913","Time_Complete":"2015-04-09T19:37:56","Task_Description"
I am actually interested at the two different date fields I am receiving:
"Date_Due":"2015-04-08T19:37:56.913"
and
"Time_Complete":"2015-04-09T19:37:56"
As we can see, one has the millisecond timestamp and the other one does not.
By looking at the DB, this happens because the millisecond is actually .000 in the database (MS SQL Server) and for whatever reason, the result I receive in my json has this part truncated.
I am not interested in the milliseconds but I would like to have a dateFormat function that can handle both scenarios.
Now I have an obvious answer which is (pre)parse every date field, remove the milliseconds if they are there and then use the following code to format them:
let SQLDateFormatter: NSDateFormatter = {
let formatter = NSDateFormatter()
formatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss"
formatter.locale = NSLocale(localeIdentifier: "en_US_POSIX")
formatter.timeZone = NSTimeZone(forSecondsFromGMT: 0)
return formatter
}()
However I would like to know if we can build a formatter that can solve this issue without pre-parsing, something that would be able to take both:
formatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss"
and
formatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss.SSS"
and automatically do the formatting properly.
I have been checking for this issue but could not find anything out there, thanks in advance...
extension Formatter {
static let iso8601: DateFormatter = {
let formatter = DateFormatter()
formatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss"
formatter.locale = Locale(identifier: "en_US_POSIX")
formatter.timeZone = TimeZone(secondsFromGMT: 0)
return formatter
}()
static let iso8601withFractionalSeconds: DateFormatter = {
let formatter = DateFormatter()
formatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss.SSS"
formatter.locale = Locale(identifier: "en_US_POSIX")
formatter.timeZone = TimeZone(secondsFromGMT: 0)
return formatter
}()
}
extension String {
var date: Date? {
return Formatter.iso8601withFractionalSeconds.date(from: self) ??
Formatter.iso8601.date(from: self)
}
}
"2015-04-08T19:37:56.913".date // "Apr 8, 2015, 4:37 PM"
"2015-04-09T19:37:56".date // "Apr 9, 2015, 4:37 PM"
No, NSDateFormatter will return nil if the string is not in the exact dateFormat as specified.
What you can do instead of preprocessing the string, is just check if the string you got is with miliseconds or without.
The best way to do this is using Regex. The idea is to create the SQLDateFormatter like you normal, and then check if the string has miliseconds or not. If there are miliseconds included, just change the dateFormat - way better than parsing the string.
if let match = tes.rangeOfString("(\\d{4}-\\d\\d-\\d\\d[T](\\d\\d:){2}\\d\\d.\\d{3})", options: NSStringCompareOptions.RegularExpressionSearch)
{
SQLDateFormatter.format = "yyyy-MM-dd'T'HH:mm:ss.SSS"
}