I'm trying to parse date with folloing code:
let dateFormatter = ISO8601DateFormatter()
dateFormatter.timeZone = TimeZone(identifier: "UTC")
dateFormatter.formatOptions = [ .withInternetDateTime, .withFractionalSeconds ]
let date = dateFormatter.date(from: "2019-01-30T23:51:55.650144Z")
let string = dateFormatter.string(from: date) // 2019-01-30T23:51:55.650Z
Input date:
2019-01-30T23:51:55.650144Z
But output date is:
2019-01-30T23:51:55.650Z
This is keep only 3 digits in fractional part.
How to avoid it?
Related
I get a crash when running and it points at the dateFormmater.timezone.
The error in the console is:
Could not cast value of type 'Swift.Optional' (0x1192bf4a8) to 'NSTimeZone' (0x1192c0270).
the value of rowEvents.date is "1480134638.0"
Im trying to pull out a Unix timestamp from Firebase saved as a string. Convert it to Date and again save it as a string so I can post it on a cell label.
I got this code from StackOverflow. I plugged in my data and everything is all good until I run it. I guess everything is not all good...
if let lastUpdated : String = rowEvents.date {
let epocTime = TimeInterval(lastUpdated)! / 1000 // convert it from milliseconds dividing it by 1000
let unixTimestamp = NSDate(timeIntervalSince1970: epocTime) //convert unix timestamp to Date
let dateFormatter = DateFormatter()
dateFormatter.timeZone = NSTimeZone() as TimeZone!
dateFormatter.locale = NSLocale.current // NSLocale(localeIdentifier: "en_US_POSIX")
dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ssZZZZZ"
dateFormatter.date(from: String(describing: unixTimestamp))
let updatedTimeStamp = unixTimestamp
let cellDate = DateFormatter.localizedString(from: updatedTimeStamp as Date, dateStyle: DateFormatter.Style.full, timeStyle: DateFormatter.Style.medium)
cell.subtitleLabel.text = cellDate
}
The result came from this code here:
let myTimeStamp = self.datePicker?.date.timeIntervalSince1970
let calendarDate = String(describing: myTimeStamp! /** 1000*/)
You can convert unixTimestamp to date using Date(timeIntervalSince1970:).
let unixTimestamp = 1480134638.0
let date = Date(timeIntervalSince1970: unixTimestamp)
If you want to display date in string with specific formate than you can use DateFormatter like this way.
let date = Date(timeIntervalSince1970: unixtimeInterval)
let dateFormatter = DateFormatter()
dateFormatter.timeZone = TimeZone(abbreviation: "GMT") //Set timezone that you want
dateFormatter.locale = NSLocale.current
dateFormatter.dateFormat = "yyyy-MM-dd HH:mm" //Specify your format that you want
let strDate = dateFormatter.string(from: date)
The problem is the line dateFormatter.timeZone = NSTimeZone() as TimeZone!.
Simply use TimeZone instead of NSTimeZone like
dateFormatter.timeZone = TimeZone.current and your code will work.
You might also remove your / 1000 because 1480134638.0 looks more like seconds than milliseconds (since 1970).
Swift 4.1. I created a function. Just pass you timeStamp in function param and function will return data in string data type. You can add more properties to DateFormatter object.
func getDateFromTimeStamp(timeStamp : Double) -> String {
let date = NSDate(timeIntervalSince1970: timeStamp / 1000)
let dayTimePeriodFormatter = DateFormatter()
dayTimePeriodFormatter.dateFormat = "dd MMM YY, hh:mm a"
// UnComment below to get only time
// dayTimePeriodFormatter.dateFormat = "hh:mm a"
let dateString = dayTimePeriodFormatter.string(from: date as Date)
return dateString
}
Using playground all I did was this.
let epochTime = 1547855446
let newTime = Date(timeIntervalSince1970: TimeInterval(epochTime))
print(newTime)
Returns this - 2019-01-18 23:50:46 +0000
extension Double{
func convertDate(formate: String) -> String {
let date = (timeIntervalSince1970: self)
let dateFormatter = DateFormatter()
dateFormatter.timeZone = TimeZone.current
dateFormatter.locale = NSLocale(localeIdentifier: "(your localization language)" ) as Locale //localization language
dateFormatter.dateFormat = formate //Specify your format that you want let
strDate = dateFormatter.string(from: date)
return strDate
}
}
//usage
let timeStamp:Double = Double(1595407043)
print(timeStamp.convertDate(formate: "EEEE dd/MM/YYY"))
This solution is valid for swift 3 -> 4.2 :
you can add an extension on the Double that returns the date formatted:
extension Double {
// returns the date formatted.
var dateFormatted : String? {
let date = Date(timeIntervalSince1970: self)
let dateFormatter = DateFormatter()
dateFormatter.timeStyle = DateFormatter.Style.none //Set time style
dateFormatter.dateStyle = DateFormatter.Style.short //Set date style
return dateFormatter.string(from: date)
}
// returns the date formatted according to the format string provided.
func dateFormatted(withFormat format : String) -> String{
let date = Date(timeIntervalSince1970: self)
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = format
return dateFormatter.string(from: date)
}
}
example on the above :
let timeStamp = 82749029.0
print(timeStamp. dateFormatted)
//output
//12/11/1994
let timeStamp = 82749029.0
print(timeStamp. dateFormatted(withFormat : "MM-dd-yyyy HH:mm"))
//output
//12-11-1994 13:04
I have a string that looks like this:
"date": "2022-06-30T02:15:00.000+07:00"
And I formatted it to convert to "HH:mm" like this:
func formatTime(string: String) -> String {
let dateFormatterGet = DateFormatter()
dateFormatterGet.dateFormat = "yyyy-MM-dd'T'HH:mm:ss.SSSZZZZZ"
let dateFormatterPrint = DateFormatter()
dateFormatterPrint.dateFormat = "HH:mm"
let date: Date? = dateFormatterGet.date(from: string)
return dateFormatterPrint.string(from: date ?? Date())
}
The result I want it returns is 09:15, but it returns 02:15.
Can someone tell me where I went wrong? Thank you
"2022-06-30T02:15:00.000+07:00" is the date in the time zone plus 7 hours from the UTC time zone. Than this date in UTC is “ 2022-06-29T19:15:00Z”
while dateFormatterPrint has a default locale configuration according to the phone settings
You need to set UTC timezone
In this case you might want to convert the DateTime to your local time first:
Convert To LocalTime:
func utcToLocal(dateStr: String) -> String? {
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "HH:mm"
dateFormatter.timeZone = TimeZone(abbreviation: "UTC")
if let date = dateFormatter.date(from: dateStr) {
dateFormatter.timeZone = TimeZone.current
dateFormatter.dateFormat = "HH:mm"
return dateFormatter.string(from: date)
}
return nil
}
And then:
let utcTime = formatTime(string: "2022-06-30T02:15:00.000+07:00")
let localTime = utcToLocal(dateStr: utcTime)
print(localTime)
The Result:
09:15
I hope this help you solve your problem.
I have such time which I have to send to the server:
2019-03-06T14:49:55+01:00
I thought that I can do it in such way:
NSDate(timeIntervalSince1970: TimeInterval(NSDate().timeIntervalSince1970))
but I got such time:
2021-01-24 15:42:31 +0000
I thought that I have to user decoding pattern, so used such way:
let dateFormatterGet = DateFormatter()
dateFormatterGet.dateFormat = "yyyy-MM-dd HH:mm:ss+z"
let dateFormatterPrint = DateFormatter()
dateFormatterPrint.dateFormat = "MMM dd,yyyy"
let time = NSDate(timeIntervalSince1970: TimeInterval(NSDate().timeIntervalSince1970))
if let date = dateFormatterGet.date(from: time.description) {
print(dateFormatterPrint.string(from: date))
} else {
print("There was an error decoding the string")
}
but its output was:
There was an error decoding the string
what means that I can't decode this time in such way. What I did wrong?
You are creating a string from a date from a time interval from a date, three of the conversions are waste.
The conversion failed because time.description doesn't match the format yyyy-MM-dd HH:mm:ss+z
To get an ISO8601 string with time zone the date format is yyyy-MM-dd'T'HH:mm:ssZ and you have to specify a fixed locale
let formatter = DateFormatter()
formatter.locale = Locale(identifier: "en_US_POSIX")
formatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ssZ"
let isoString = formatter.string(from: Date())
There is a shorter way as suggested by Rob in the comments
let formatter = ISO8601DateFormatter()
formatter.timeZone = .current
let isoString = formatter.string(from: Date())
I need to date and time with my own format like time in AM/PM (12 hours).
extension Date {
func getStringFromDateWithUTCFormat() -> ObjTimeStamp {
let dateFormatterPrint = DateFormatter()
dateFormatterPrint.timeZone = TimeZone.init(abbreviation: "UTC")
// Get Date
dateFormatterPrint.dateFormat = "MM/dd/yyyy" //"MMM dd,yyyy"
let date = dateFormatterPrint.string(from: self)
// Get Time
dateFormatterPrint.dateFormat = "hh:mm:ss a"
let time = dateFormatterPrint.string(from: self)
return ObjTimeStamp.init(date: date, time: time, timeStamp: self)
}
}
Update
Calling function
self.currentDate = Date()
let objTimeStamp = currentDate.getStringFromDateWithUTCFormat()
Perfect work when device time in 12-hour format when I try to change device time in 24-hour formate then given wrong time format.
set your dateFormatter locale to en-US then try to convert, it's works for me when iPhone's time format is 24 hour:
let date = Date()
let formatter = DateFormatter()
formatter.locale = Locale(identifier: "en-US")
formatter.dateFormat = "hh:mm a"
let time12 = formatter.string(from: date)
print(time12)
output:
01:37 PM
I'm trying to get the current date. Current Date and time is 2019-12-16 05:12:59 but I get 2019-12-16 10:12:59.
let dateAdded = itemDict["time"] as! String
let df = DateFormatter()
df.dateFormat = "yyyy-MM-dd hh:mm:ss"
let currentTime = df.date(from: dateAdded)
let dateTime = currentTime!.addingTimeInterval(60.0 * 60.0)
let currentDate = Date()
Try this:
Date().toCurrentTimezone()
extension Date {
func toCurrentTimezone() -> Date {
let timeZoneDifference =
TimeInterval(TimeZone.current.secondsFromGMT())
return self.addingTimeInterval(timeZoneDifference)
}
}
To get the current time without a format you can simply just add this:
let currentDateTime = Date()
print(currentDateTime)
But if you would like to retrieve a "string" and convert it into a date you can do:
let dateAdded = itemDict["time"] as! String
//Convert string to date
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "yyyy-MM-dd HH:mm"
let date = dateFormatter.date(from: dateAdded!)
If you're still getting wrong time, you should add timezone. In that case the code will be something like this:
let dateAdded = itemDict["time"] as! String
//Convert string to date
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "yyyy-MM-dd HH:mm"
dateFormatter.timeZone = TimeZone(abbreviation: "UTC")
let date = dateFormatter.date(from: dateAdded!)
If you're using uppercase "HH" that means you're using the 24h clock. Otherwise use small case "hh".
You need to set your local time zone in date formator.
//Get local time Zone
var localTimeZoneIdentifier: String { return TimeZone.current.identifier }
print("local Time zone: " + localTimeZoneIdentifier)
let inputdateString: String = "2019-12-16 05:12:59"
let dateFormatter = DateFormatter()
dateFormatter.locale = Locale(identifier: localTimeZoneIdentifier)
dateFormatter.dateFormat = "yyyy-MM-dd hh:mm:ss"
let inputDate = dateFormatter.date(from: inputdateString )!
print("Output date: \(String(describing: inputDate))")
out put:-
local Time zone:-Asia/Kolkata
Output date: 2019-12-15 23:42:59 +0000