golang 时间missing Location in call to Date

golang使用"Asia/Shanghai"时区转换时间格式报：missing Location in call to Date

当然解决方法1是：time.FixedZone

    //os.Setenv("ZONEINFO","D:\\ProgramFiles\\Go\\lib\\time\\zoneinfo")
    loc, err := time.LoadLocation("Asia/Shanghai") //设置时区
    if err != nil {
        loc = time.FixedZone("CST-8", 8*3600)
    }
    fmt.Print(loc)

解决方法二是：os.Setenv("ZONEINFO","xxx") 值可以是那个zip文件，也可以是一个目录，比如把zip解压后的目录，我这是解压zoneinfo.zip，【我的问题是，公司强制安装一个软件，会加密电脑上的word ,txt,zip 等文件，导致读出来的zip 文件头有问题】

源码如下【1.15.6版本，省略了一些无关的的代码】

func LoadLocation(name string) (*Location, error) {
.......
    zoneinfoOnce.Do(func() {
        env, _ := syscall.Getenv("ZONEINFO")
        zoneinfo = &env
    })
    var firstErr error
    if *zoneinfo != "" {
        if zoneData, err := loadTzinfoFromDirOrZip(*zoneinfo, name); err == nil {
            if z, err := LoadLocationFromTZData(name, zoneData); err == nil {
                return z, nil
            }
            firstErr = err
        } else if err != syscall.ENOENT {
            firstErr = err
        }
    }
    ......
    return nil, firstErr
}

func loadTzinfoFromDirOrZip(dir, name string) ([]byte, error) {
    if len(dir) > 4 && dir[len(dir)-4:] == ".zip" {
        return loadTzinfoFromZip(dir, name)
    }
    if dir != "" {
        name = dir + "/" + name
    }
    return readFile(name)
}

// loadTzinfoFromZip returns the contents of the file with the given name
// in the given uncompressed zip file.
func loadTzinfoFromZip(zipfile, name string) ([]byte, error) {
    fd, err := open(zipfile)
    if err != nil {
        return nil, err
    }
    defer closefd(fd)
....................................
    buf := make([]byte, ztailsize)
    if err := preadn(fd, buf, -ztailsize); err != nil || get4(buf) != zecheader {
        return nil, errors.New("corrupt zip file " + zipfile)
    }
.................................
    return nil, syscall.ENOENT
}