Get time from internet

InternetTime

import UIKit



extension Formatter {

    static let enUSPOSIX: DateFormatter = {

        let formatter = DateFormatter()

        formatter.locale = Locale(identifier: "en_US_POSIX")//For 11.3.1 version change

        return formatter

        

        

    }()

}

extension Date {

    var convertToMiliSecond: String{

        let df = Formatter.enUSPOSIX

        df.dateFormat = "yyyy-MM-dd'T'HH:mm:ss"

         let date = Date(timeInterval: 19800.0, since: self)//19800.0

        print(date)

        return df.string(from: date)

    }

}

func getTimeFromServer(completionHandler:@escaping (_ getResDate: Date?) -> Void){

    let url = URL(string: "https://www.apple.com")

    let task = URLSession.shared.dataTask(with: url!) {(data, response, error) in

        let httpResponse = response as? HTTPURLResponse

        if let contentType = httpResponse!.allHeaderFields["Date"] as? String {

            //print(httpResponse)

            let dFormatter = DateFormatter()

            dFormatter.dateFormat = "EEE, dd MMM yyyy HH:mm:ss z"

            //dFormatter.timeZone = TimeZone(identifier: "UTC")

            let serverTime = dFormatter.date(from: contentType)

            serverTime?.convertToMiliSecond

            completionHandler(serverTime)

        }

    }

    task.resume()

}

getTimeFromServer { (serverDate) in

    //print(serverDate)

}