如何从 YYYY-MM-dd'T'HH:mm:ss.sssZ 获取时间

Question

您好，我想从“2017-07-31T11:40:00.000Z”11:40 中获取时间11:40

下面是我使用的代码：

     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))")

得到的时间是 1:29 即我得到的时间不对

请帮我解决这个问题。

Answer 1

使用日期格式

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

而不是

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

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

Answer 2

试试这个使用 timeZone 属性的 dateFormatter.

let formatter = Foundation.DateFormatter()
formatter.dateFormat = "YYYY-MM-dd'T'HH:mm:ss.sssZ"
let date1  = formatter.date(from: "2017-07-31T11:40:00.000Z")
print("date:\(String(describing: date1))")
let dateFormatterPrint = Foundation.DateFormatter()
dateFormatterPrint.timeZone = TimeZone(abbreviation: "UTC")
dateFormatterPrint.dateFormat = "HH:mm"
let resultTime = dateFormatterPrint.string(from: date1!)
print("time:\(String(describing: resultTime))")

Answer 3

NSLog 总是以 GMT 时区打印日期对象，而不是您当地的时区。使用您当地的时区

如何从 YYYY-MM-dd'T'HH:mm:ss.sssZ 获取时间

How to get time from YYYY-MM-dd'T'HH:mm:ss.sssZ

date

nsdateformatter

ios

swift3