在特定的日期和时间以快速的时间获取UTC时间？ [英] Get UTC time for a particular date and time in swift?

问题描述

Helllo all，

Helllo all,

我有一个特定的日期&在iOS中从datepicker中选择的时间。我想转换这个日期&时间到UTC时间。我已经使用了下面的功能。

I have a particular date & time selected from datepicker in iOS. i want to convert this date & time into UTC time.I have used below function for it.

func get_Date_time_from_UTC_time(string : String) -> String {

    let dateformattor = DateFormatter()
    dateformattor.dateFormat = "yyyy-MM-dd HH:mm:ss"
    dateformattor.timeZone = NSTimeZone.init(abbreviation: "UTC") as TimeZone!
    let dt = string
    let dt1 = dateformattor.date(from: dt as String)
    dateformattor.dateFormat = "yyyy-MM-dd HH:mm:ss ZZZ"
    dateformattor.timeZone = NSTimeZone.local
    return dateformattor.string(from: dt1!)
  }

我的位置在印度。所以当我通过时间像 2016-12-26 09:53:45 然后它给我UTC时间作为 2016-12-26 15:23 ：00 +0530 。现在我在谷歌搜索UTC时间，显示时间为 4:32 AM 26十二月。请告诉为什么这种差异我正在做正确的事情吗？

My location is in india. So when i pass time like 2016-12-26 09:53:45 then it gives me UTC time as 2016-12-26 15:23:00 +0530.Now when i search in google for UTC time it shows me time as 4:32 AM 26 december.Please tell why is such diffrence & am i doing correct ?

推荐答案

你可以尝试使用以下代码：
因为根据我的理解，你应该提供您的本地时区首先将您的日期转换为本地，然后将其转换为UTC：

Could you please try using below code: Because as per my understanding you should provide your local time zone first to convert your date into local and then it will convert into UTC:

func get_Date_time_from_UTC_time(string : String) -> String {

    let dateformattor = DateFormatter()
    dateformattor.dateFormat = "yyyy-MM-dd HH:mm:ss"
    dateformattor.timeZone = NSTimeZone.local
    let dt = string
    let dt1 = dateformattor.date(from: dt as String)
    dateformattor.dateFormat = "yyyy-MM-dd HH:mm:ss ZZZ"
    dateformattor.timeZone = NSTimeZone.init(abbreviation: "UTC") as TimeZone!
    return dateformattor.string(from: dt1!)
  }

timeZone code.Check，让我知道如果没有解决

I replaced timeZone code.Check and let me know if not solved

这篇关于在特定的日期和时间以快速的时间获取UTC时间？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！