如何从YYYY-MM-dd'T'HH:mm:ss.sssZ中获取时间

问题描述：

我想从"2017-07-31T11:40:00.000Z"开始获得11:40的时间

Hi I want to get time as 11:40 from "2017-07-31T11:40:00.000Z"

以下是我正在使用的代码:

Below is the code I am using:

     let formatter = Foundation.DateFormatter()
        formatter.dateFormat = "YYYY-MM-dd'T'HH:mm:ss.sssZ" //2017-04-01T18:05:00.000
        let date1  = formatter.date(from: data.arvTime)
        print("date:\(String(describing: date1))")
        let dateFormatterPrint = Foundation.DateFormatter()
        dateFormatterPrint.dateFormat = "HH:mm"
        let resultTime = dateFormatterPrint.string(from: date1!)
        print("time:\(String(describing: resultTime))")

获取时间为1:29，即我获取的时间不正确

getting time as 1: 29 i.e. I am getting wrong time

请帮助我解决此问题.

答

使用日期格式

formatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'"

代替

formatter.dateFormat = "YYYY-MM-dd'T'HH:mm:ss.sssZ"

查看完整代码

 let formatter = Foundation.DateFormatter()
    formatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'" //2017-04-01T18:05:00.000
    let date1  = formatter.date(from: "2017-04-01T18:05:00.000Z")
    print("date:\(String(describing: date1))") 
    formatter.dateFormat = "HH:mm"
    let resultTime = formatter.string(from: date1!)
    print("time:\(String(describing: resultTime))")

选项2

    let formatter = Foundation.DateFormatter()
    formatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss.sssZ" //2017-04-01T18:05:00.000
    let date1  = formatter.date(from: "2017-04-01T18:05:00.000Z")
    print("date:\(String(describing: date1))")
    formatter.timeZone = TimeZone(abbreviation: "UTC")
    formatter.dateFormat = "HH:mm"
    let resultTime = formatter.string(from: date1!)
    print("time:\(String(describing: resultTime))")

输出

如何从YYYY-MM-dd'T'HH:mm:ss.sssZ中获取时间

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