如何在Swift中将字符串UTC日期转换为NSDate

I'm getting UTC string dates that look like this "2015-10-17T00:00:00.000Z" and want to convert them to an NSDate in this format "October 12th 2015 11:19:12 am"

我得到的UTC字符串日期看起来像这个“2015-10-17T00：00：00.000Z”，并希望以这种格式将它们转换为NSDate“2015年10月12日上午11:19:12”

This is the route that I'm trying but I can't seem to get the right dateFormat.

这是我正在尝试的路线，但我似乎无法获得正确的dateFormat。

let dateFormatter = NSDateFormatter()
dateFormatter.dateFormat = //can't seem to get this right
dateFormatter.timeZone = NSTimeZone(name: "UTC")
let date = dateFormatter.dateFromString("2015-10-17T00:00:00.000Z")

2 个解决方案

#1

I think this should work

我认为这应该有效

let formatter = NSDateFormatter()
formatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss.SSSZ"
let localDate = formatter.dateFromString(date)

#2

This works for Swift 3.0 and latest Xcode [April 2017]

这适用于Swift 3.0和最新的Xcode [2017年4月]

let dateString = "2017-Jan-01 12:00:00.250"
        let dateFormatter = DateFormatter()
        dateFormatter.dateFormat = "yyyy-M-dd HH:mm:ss.SSS"
        dateFormatter.locale = Locale.init(identifier: "en_GB")
        let dateObj = dateFormatter.date(from: dateString)

        let date = dateObj
        let formatter = DateFormatter()
        formatter.calendar = Calendar(identifier: .iso8601)
        formatter.locale = Locale(identifier: "en_US_POSIX")
        formatter.timeZone = TimeZone(secondsFromGMT: 0)
        formatter.dateFormat = "yyyy-MM-dd HH:mm:ss.SSSXXXXX"
        let currentDateTime = formatter.string(from: date!)

#1