Convert datestring to Swift 3 NSDate [duplicate] - ios

Question

This question already has an answer here:
How to format DateFormatter(NSDateFormattter) for Date String
(1 answer)
Closed 5 years ago.
I having a date string:
Wed Mar 25 2017 05:30:00 GMT+0530 (IST)
I want to convert this string to the Date object in Swift 3.
I have referred to Link1, Link 2 and Link 3 for generating the format for this date string but could not get the correct format.

Answer 1

1) If you have string which contains timezone names like IST or GMT differences, then you can use NSDateDetector as explained in this SO post answer:
extension String {
var nsString: NSString { return self as NSString }
var length: Int { return nsString.length }
var nsRange: NSRange { return NSRange(location: 0, length: length) }
var detectDates: [Date]? {
return try? NSDataDetector(types: NSTextCheckingResult.CheckingType.date.rawValue)
.matches(in: self, range: nsRange)
.flatMap{$0.date}
}
}
//your example here
let dateString = "Wed Mar 25 2017 05:30:00 GMT+0530 (IST)"
if let dateDetected = dateString.detectDates?.first {
let date = dateDetected//Mar 25, 2017, 5:30 AM
print(dateDetected)//2017-03-25 00:00:00 +0000 - this is GMT time
}
Mar 25, 2017, 5:30 AM //date converted to local time zone
2017-03-25 00:00:00 +0000 //printed value of GMT time
2) Or if you some how able to remove GMT and IST reference from your string then try this:
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "EEE, MMM d yyyy HH:mm:ss Z"
let date = dateFormatter.date(from: "Wed Mar 25 2017 05:30:00 +0530")!
print(date)
It will give you
Mar 25, 2017, 5:30 AM //date converted to local time zone
2017-03-25 00:00:00 +0000 //printed value of GMT time

Answer 2

var dateString = "Wed, 25 Mar 2017 05:30:00 +0000"
var dateFormatter = DateFormatter()
dateFormatter.dateFormat = "E, d MMM yyyy HH:mm:ss Z"
var dateFromString = dateFormatter.date(from: dateString)
print(dateFromString)