This question already has answers here:
NSDateFormatter return incorrect date from string
(3 answers)
Closed 7 years ago.
I'm trying to convert a Date and Time String to NSDate with Swift, But the problem is The time is not converting perfectly, Even i set my Timezone correctly, Here's my code:
var dateStr = "2015-10-16 08:00 AM"
var dateFormatter = NSDateFormatter()
dateFormatter.dateFormat = "yyyy-MM-dd hh:mm a"
dateFormatter.timeZone = NSTimeZone(forSecondsFromGMT: 28800)
var date = dateFormatter.dateFromString(dateStr)
print(date!)
And it prints out like this: 2015-10-16 00:00:00 +0000 What do you think seems to be the problem? Thanks!
Nothing wrong here. You should convert date to String before print it.
let dateStr = "2015-10-16 08:00 AM"
let dateFormatter = NSDateFormatter()
dateFormatter.dateFormat = "yyyy-MM-dd hh:mm a"
dateFormatter.timeZone = NSTimeZone(forSecondsFromGMT: 28800)
let date = dateFormatter.dateFromString(dateStr)
print(dateFormatter.stringFromDate(date!))
or as in Swift 3
let dateStr = "2015-10-16 08:00 AM"
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "yyyy-MM-dd hh:mm a"
dateFormatter.timeZone = TimeZone(secondsFromGMT: 28800)
let date = dateFormatter.date(from: dateString)
print(dateFormatter.string(from: date))
The same result: 2015-10-16 08:00 AM
Related
I have a function to convert string to date format. This function works as expected on iOS 12 but on iOS 13. I get this error:
"Thread 1: Fatal error: Unexpectedly found nil while unwrapping an Optional value"
Here is my code:
func ConvertDateAndTimeFormat2() {
let timeDate = "2019-09-24 15:00:00 +0000"
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "yyyy-MM-dd HH:mm:ss +zzzz"
dateFormatter.timeZone = TimeZone(abbreviation: "GMT+3:00")
var dateObj:Date!
dateObj = dateFormatter.date(from: timeDate)
dateFormatter.dateFormat = "EEEE, MMM d, yyyy"
dateFormatter.timeZone = TimeZone(abbreviation: "GMT+3:00")
let timeFormatter = DateFormatter()
timeFormatter.dateFormat = "yyyy-MM-dd HH:mm:ss +zzzz"
timeFormatter.timeZone = TimeZone(abbreviation: "GMT+3:00")
var timeObj:Date!
timeObj = timeFormatter.date(from: timeDate)
timeFormatter.dateFormat = "HH:mm"
timeFormatter.timeZone = TimeZone(abbreviation: "GMT+3:00")
let timef = "\(timeFormatter.string(from: timeObj!))"
let Date = "\(dateFormatter.string(from: dateObj!))"
}
Please change your dateformat and use "yyyy-MM-dd HH:mm:ss Z" and try.
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "yyyy-MM-dd HH:mm:ss Z"
For more details please visit https://nsdateformatter.com/
If you are trying to convert string time which in 24 hours format (Ex 15:25:00 / HH:mm:ss) then enable your device 24-Hour Time option. It might solve the issue in IOS 13.3
You may find the option here
Settings -> General -> Date & Time
There are many issues with your code. There is no reason to create two Date objects from one string. Just parse the original string once. Then you can create your date string and time string with the desired formats from that one date.
You should also use the special locale of en_US_POSIX when parsing fixed format date strings. There is also no need to set a timezone when parsing the original date string. The string provides its own timezone. The +0000 means it is UTC time.
You may not want to provide a timezone when converting the date to your final strings either. Most likely you want strings in the user's locale timezone, not some hardcoded timezone.
Here's your code cleaned up a lot:
func convertDateAndTimeFormat2() {
let timeDate = "2019-09-24 15:00:00 +0000"
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "yyyy-MM-dd HH:mm:ss Z"
dateFormatter.locale = Locale(identifier: "en_US_POSIX")
if let dateObj = dateFormatter.date(from: timeDate) {
dateFormatter.dateFormat = "EEEE, MMM d, yyyy"
dateFormatter.timeZone = TimeZone(abbreviation: "GMT+3:00") // Probably not needed
let timeFormatter = DateFormatter()
timeFormatter.dateFormat = "HH:mm"
timeFormatter.timeZone = TimeZone(abbreviation: "GMT+3:00") // Probably not needed
let timef = timeFormatter.string(from: dateObj)
let datef = dateFormatter.string(from: dateObj)
print("Date: \(datef), time: \(timef)")
}
}
convertDateAndTimeFormat2()
Output:
Date: Tuesday, Sep 24, 2019, time: 18:00
I'm trying to get from 24 hrs like 5:00:00 to 5 am, but I'm having difficulty understanding how.
I have tried a few similar things, but eventually got to this:
let date: String = "5:00:00"
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "hh:mm:ss"
let theDate = dateFormatter.date(from: date)
dateFormatter.dateFormat = "HH:mm a"
myDateText.text = dateFormatter.string(from: theDate) // myDateText is a UILabel
I expected it to be 5 am but received an error that theDate is nil. I'm a newbie, so I would really appreciate any help.
HH is stand for 24 hours and hh is stand for 12 hours.
let date: String = "15:00:00"
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "HH:mm:ss"
let theDate = dateFormatter.date(from: date)
dateFormatter.dateFormat = "hh:mm a"
print(dateFormatter.string(from: theDate!))
Output is 03:00 PM
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'm formatting a date string to date object using below code. But for some date strings it works and for some it returns nil.
Format = "yyyy-MM-dd'T'HH:mm:ss.sssZ"
"2019-04-02T09:47:24.055Z" Works
"2019-03-27T22:31:17.140Z" Doesn't work
let dateFormatter = DateFormatter()
dateFormatter.locale = Locale(identifier: "en_US_POSIX")
dateFormatter.timeZone = TimeZone(secondsFromGMT: 0)
dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss.sssZ"
let date = dateFormatter.date(from: "2019-03-27T22:31:17.140Z")
Your format is wrong. It should be:
"yyyy-MM-dd'T'HH:mm:ss.SSSZ"
Have a look at date time format here:
https://unicode.org/reports/tr35/tr35-dates.html#Date_Format_Patterns
let dateFormatter = DateFormatter()
dateFormatter.locale = Locale(identifier: "en_US_POSIX")
dateFormatter.timeZone = TimeZone(secondsFromGMT: 0)
dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss.SSSZ"
let date = dateFormatter.date(from: "2019-04-02T09:47:24.055Z")
let date1 = dateFormatter.date(from: "2019-03-27T22:31:17.140Z")
print(">>>>>!!", date, date1)
Optional(2019-04-02 09:47:24 +0000) Optional(2019-03-27 22:31:17 +0000)
The code above works as expected.
use SSS instead of sss
for your case of
yyyy-MM-dd'T'HH:mm:ss.sssZ and 2019-04-02T09:47:24.055Z
output was :
Optional(2019-04-02 09:47:55 +0000) nil
look at minutes and seconds:)
This question already has answers here:
NSDateFormatter- stringFromDate not returning AM/PM
(6 answers)
Closed 5 years ago.
To convert date and time, I have used this:
let formatter = NSDateFormatter()
formatter.calendar = NSCalendar(calendarIdentifier: NSCalendarIdentifierISO8601)
formatter.locale = NSLocale(localeIdentifier: "en_US_POSIX")
formatter.timeZone = NSTimeZone(forSecondsFromGMT: 0)
formatter.dateFormat = "M/dd/yyyy, h:mm"
formatter.AMSymbol = "AM"
formatter.PMSymbol = "PM"
let dateString = formatter.stringFromDate(model.courseDate)
print(dateString)
If the course date is "courseDate = "2017-01-09 01:00:00 +0000";"
but I am getting like this in print:
1/09/2017, 1:00 with no any AM or PM.
How can I achieve this?
Thanks.
according to the date formatter specs
You can retrieve a date in 24h format instead of requesting AM/PM by using
HH instead of hh
so the date "21/11/2016 01:30" (pm) would be "21/11/2016 13:30".
if you do need to print the format, though, you can print it using:
a
More date fomatting details here
As per Apple general date formatter you should use "M/dd/yyyy, hh:mm a" in your date format.
like : formatter.dateFormat = "M/dd/yyyy, hh:mm a"
Hope this will help you!
use following code may help full for you
//Call function
let dateTime = self.convertDateFormaterAamer(sendTimeStep, inputDateFormate: "dd-MM-yyyy HH:mm:ss", outputDateFormate: "dd-MMM-yyyy hh:mm a")
//Date function
func convertDateFormater(date: String,inputDateFormate: String , outputDateFormate: String) -> String
{
let dateFormatter = NSDateFormatter()
//dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss.SSSZ"
//dateFormatter.timeZone = NSTimeZone(name: "UTC")
dateFormatter.dateFormat = inputDateFormate
let date = dateFormatter.dateFromString(date)
//dateFormatter.dateFormat = "yyyy MMM EEEE HH:mm"
//dateFormatter.timeZone = NSTimeZone(name: "UTC")
dateFormatter.dateFormat = outputDateFormate
var timeStamp = ""
if (date != nil)
{
timeStamp = dateFormatter.stringFromDate(date!)
}
return timeStamp
}
I have this Optional(2015-07-27 19:29:50 +0000) as a string? and I want to convert it to a date (NSDate) but I can't figure it out I've been searching a lot for solutions but I am pretty new to coding so if anyone could help I would appreciate it.
This is what I am using to convert the string to a date currently.
note: dateString is Optional(2015-07-27 19:29:50 +0000)
dateFormatter = NSDateFormatter()
println(dateFormatter)
dateFormatter.dateFormat = "yyyy-MM-dd"
let s = dateFormatter.dateFromString(dateString)
I always get a nil value
If you are getting nil from NSDateFormatter, you likely specified incorrect date format. Try this:
let strTime = "2015-07-27 19:29:50 +0000"
let formatter = NSDateFormatter()
formatter.dateFormat = "yyyy-MM-dd HH:mm:ss Z"
formatter.dateFromString(strTime) // Returns "Jul 27, 2015, 12:29 PM" PST
You will want to use a NSDateFormatter and call dateFromString: on it to get the date from the string. See Apple's NSDateFormatter documentation for a great explanation of doing what you want.
In swift 3.0:
let strTime = "2015-07-27 19:29:50 +0000"
let formatter = NSDateFormatter()
formatter.dateFormat = "yyyy-MM-dd HH:mm:ss Z"
formatter.date(from: strTime)
dateString is already date and need to convert to string. Below code is working fine
dateFormatter = NSDateFormatter()
println(dateFormatter)
dateFormatter.dateFormat = "yyyy-MM-dd"
let s = dateFormatter.string(from: dateString)