noda time是Etc/UTC到Windows时区的映射

我有一个全球网站，它正在传递IANA时区id到服务器，并使用Noda时间映射到c# 5 web应用程序中的Windows时区。

"Etc/UTC"正在传递给服务器，但Noda Time无法将其映射到Windows时区。如何映射IANA时区id?

public TimeZoneInfo GetTimeZoneByIanaId(string ianaTimeZoneId)
{
    TzdbDateTimeZoneSource timeZoneSource = TzdbDateTimeZoneSource.Default;
    IList<MapZone> zoneMaps = timeZoneSource.WindowsMapping.MapZones;
    // resolve any link, since the CLDR doesn't necessarily use canonical IDs
    IList<string> mapZoneIds = timeZoneSource.CanonicalIdMap.Where(map => map.Value.Equals(ianaTimeZoneId, StringComparison.OrdinalIgnoreCase)).Select(x => x.Key).ToList();
    MapZone mapZone = zoneMaps.FirstOrDefault(zoneMap => zoneMap.TzdbIds.Any(mapZoneIds.Contains));
    if (mapZone == null)
    {
        throw new TimeZoneNotFoundException("Unable to determine the clients timezone using the jsTimezoneDetect plugin");
    }
    TimeZoneInfo timeZone = TimeZoneInfo.FindSystemTimeZoneById(mapZone.WindowsId);
    if (timeZone == null)
    {
        throw new TimeZoneNotFoundException("Unable to determine the clients timezone from NodaTime");
    }
    return timeZone;
}