在Go中将时区解析为Location结构

问题描述

鉴于诸如EDT或CEST的时区，有一种方法可以获取 time.Location 引用，以将其用于 func(t Time)In(loc * Location)Time?

Given a time zone such as EDT or CEST is there a way to get a time.Location reference to use it to with func (t Time) In(loc *Location) Time?

例如可以初始化位置使用 time.LoadLocation("Europe/Berlin")进行CEST，但如何对实际时区符号执行相同的操作?

It is possible to initialize the location for e.g. CEST with time.LoadLocation("Europe/Berlin") but how to do the same for the actual time zone notation?

鉴于@Svip非常有见地的评论，有没有什么明智的方法可以返回代表位置的列表?那是为了 WET 返回例如 [欧洲/伦敦，亚特兰蒂克/雷克雅未克] .所有其他 WET 位置将遵循与这两个位置之一相同的时区安排.

Given the very insightful comment by @Svip is there any sensible way to return a list of representative location? That is for WET return e.g. [Europe/London, Atlantik/Reykjavík]. All other WET locations would follow the same time zone arrangements as one of those two.

推荐答案

可以选择解析给定位置的时间.( https://golang.org/pkg/time/#LoadLocation )

There is option to parse time for given Location.(https://golang.org/pkg/time/#LoadLocation)

type CustomTime struct {
    time.Time
}

const ctLayout = "Jan 2, 2006 at 3:04pm (MST)"

func (ct *CustomTime) UnmarshalJSON(b []byte) (err error) {
    s := strings.Trim(string(b), "\"")
    if s == "null" {
        ct.Time = time.Time{}
        return
    }
    location, err := time.LoadLocation("Local")
    if err != nil {
        return err
    }
    ct.Time, err = time.ParseInLocation(ctLayout, s, location)
    return err
}

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