System.TimeZoneNotFoundException Fehler beim abrufen der datetime-für bestimmte Zeit-zone, in c#

Habe ich eine JSON-Datei, die time_zone parameter. Es hat Werte wie London, Casablanca, Arizona, Pacific Time (US & Canada) etc. Auf der Grundlage der time_zone möchte ich, um die DateTime Ergebnis, dass die Zeit-zone.

Beispielsweise

Current time = 8/3/2015 4:00:00 PM

If time_zone = Central Time (US & Canada) then result should be 8/3/2015 3:00:00 PM,

If time_zone = Pacific Time (US & Canada) then result should be 8/3/2015 1:00:00 PM,

If time_zone = London then result should be 8/3/2015 9:00:00 PM und so weiter.

Möchte ich zeigen Sie die aktuelle Uhrzeit sowie die Zeit nach bestimmten Zeitzone.

Versuchte ich folgenden Ansatz, um Zeit für ANGESEHENE Zeit-zone, aber es wirft einen Fehler.

Code: Werke

 DateTime timeUtc = DateTime.Now;
 TimeZoneInfo cstZone = TimeZoneInfo.FindSystemTimeZoneById("Central Standard Time");
 var b = TimeZoneInfo.ConvertTime(timeUtc, cstZone);

Fehler : The time zone ID 'Central Time (US & Canada)' was not found on the local computer.

 TimeZoneInfo cstZone = TimeZoneInfo.FindSystemTimeZoneById("Central Time (US & Canada)");
 var b = TimeZoneInfo.ConvertTime(timeUtc , cstZone);

Auch versucht aber der gleiche Fehler,

var c = TimeZoneInfo.ConvertTimeBySystemTimeZoneId(timeUtc, "Central Time (US & Canada)");

Mein Problem ist, time_zone Werte sind in Central Time (US & Canada), Pacific Time (US & Canada), etc. - format und ich habe, mit zu arbeiten, wie auch die verschiedenen Zeitzonen, wie London, Casablanca . Wie behandeln Sie diese Art von Szenarien.

Diese sehen aus wie Sie kamen aus den Schienen. Können Sie werfen Sie einen Blick auf die Rails Zeitzone MAPPING ständige und prüfen, ob alle Schlüssel mit denen in deiner Datei?
Die meiste Zeit Zonen entspricht dem link den du geschickt hast.

InformationsquelleAutor CSharper | 2015-08-03

  1. 1

    Vorausgesetzt die Zeitzone IDS in der Datei kam Schienen, dann sind Sie im Grunde fragt der Rückseite diese Frage.

    Ähnlich zu der Antwort auf diese Frage, wir verwenden die Schienen mapping, zusammen mit CLDR-mappings, um ein Schienen-Zu-Windows-mapping Konstante in C#.

    public static class TZConvert
{
    public static string RailsToWindows(string railsTimeZoneId)
    {
        return RailsWindowsMapping.ContainsKey(railsTimeZoneId)
            ? RailsWindowsMapping[railsTimeZoneId]
            : null;
    }

    private static readonly IReadOnlyDictionary<string, string> RailsWindowsMapping =
        new Dictionary<string, string>
        {
            {"Abu Dhabi", "Arabian Standard Time"},
            {"Adelaide", "Cen. Australia Standard Time"},
            {"Alaska", "Alaskan Standard Time"},
            {"Almaty", "Central Asia Standard Time"},
            {"American Samoa", "UTC-11"},
            {"Amsterdam", "W. Europe Standard Time"},
            {"Arizona", "US Mountain Standard Time"},
            {"Astana", "Bangladesh Standard Time"},
            {"Athens", "GTB Standard Time"},
            {"Atlantic Time (Canada)", "Atlantic Standard Time"},
            {"Auckland", "New Zealand Standard Time"},
            {"Azores", "Azores Standard Time"},
            {"Baghdad", "Arabic Standard Time"},
            {"Baku", "Azerbaijan Standard Time"},
            {"Bangkok", "SE Asia Standard Time"},
            {"Beijing", "China Standard Time"},
            {"Belgrade", "Central Europe Standard Time"},
            {"Berlin", "W. Europe Standard Time"},
            {"Bern", "W. Europe Standard Time"},
            {"Bogota", "SA Pacific Standard Time"},
            {"Brasilia", "E. South America Standard Time"},
            {"Bratislava", "Central Europe Standard Time"},
            {"Brisbane", "E. Australia Standard Time"},
            {"Brussels", "Romance Standard Time"},
            {"Bucharest", "GTB Standard Time"},
            {"Budapest", "Central Europe Standard Time"},
            {"Buenos Aires", "Argentina Standard Time"},
            {"Cairo", "Egypt Standard Time"},
            {"Canberra", "AUS Eastern Standard Time"},
            {"Cape Verde Is.", "Cape Verde Standard Time"},
            {"Caracas", "Venezuela Standard Time"},
            {"Casablanca", "Morocco Standard Time"},
            {"Central America", "Central America Standard Time"},
            {"Central Time (US & Canada)", "Central Standard Time"},
            {"Chennai", "India Standard Time"},
            {"Chihuahua", "Mountain Standard Time (Mexico)"},
            {"Chongqing", "China Standard Time"},
            {"Copenhagen", "Romance Standard Time"},
            {"Darwin", "AUS Central Standard Time"},
            {"Dhaka", "Bangladesh Standard Time"},
            {"Dublin", "GMT Standard Time"},
            {"Eastern Time (US & Canada)", "Eastern Standard Time"},
            {"Edinburgh", "GMT Standard Time"},
            {"Ekaterinburg", "Ekaterinburg Standard Time"},
            {"Fiji", "Fiji Standard Time"},
            {"Georgetown", "SA Western Standard Time"},
            {"Greenland", "Greenland Standard Time"},
            {"Guadalajara", "Central Standard Time (Mexico)"},
            {"Guam", "West Pacific Standard Time"},
            {"Hanoi", "SE Asia Standard Time"},
            {"Harare", "South Africa Standard Time"},
            {"Hawaii", "Hawaiian Standard Time"},
            {"Helsinki", "FLE Standard Time"},
            {"Hobart", "Tasmania Standard Time"},
            {"Hong Kong", "China Standard Time"},
            {"Indiana (East)", "US Eastern Standard Time"},
            {"International Date Line West", "UTC-11"},
            {"Irkutsk", "North Asia East Standard Time"},
            {"Islamabad", "Pakistan Standard Time"},
            {"Istanbul", "Turkey Standard Time"},
            {"Jakarta", "SE Asia Standard Time"},
            {"Jerusalem", "Israel Standard Time"},
            {"Kabul", "Afghanistan Standard Time"},
            {"Kaliningrad", "Kaliningrad Standard Time"},
            {"Kamchatka", "Russia Time Zone 11"},
            {"Karachi", "Pakistan Standard Time"},
            {"Kathmandu", "Nepal Standard Time"},
            {"Kolkata", "India Standard Time"},
            {"Krasnoyarsk", "North Asia Standard Time"},
            {"Kuala Lumpur", "Singapore Standard Time"},
            {"Kuwait", "Arab Standard Time"},
            {"Kyiv", "FLE Standard Time"},
            {"La Paz", "SA Western Standard Time"},
            {"Lima", "SA Pacific Standard Time"},
            {"Lisbon", "GMT Standard Time"},
            {"Ljubljana", "Central Europe Standard Time"},
            {"London", "GMT Standard Time"},
            {"Madrid", "Romance Standard Time"},
            {"Magadan", "Magadan Standard Time"},
            {"Marshall Is.", "UTC+12"},
            {"Mazatlan", "Mountain Standard Time (Mexico)"},
            {"Melbourne", "AUS Eastern Standard Time"},
            {"Mexico City", "Central Standard Time (Mexico)"},
            {"Mid-Atlantic", "UTC-02"},
            {"Midway Island", "UTC-11"},
            {"Minsk", "Belarus Standard Time"},
            {"Monrovia", "Greenwich Standard Time"},
            {"Monterrey", "Central Standard Time (Mexico)"},
            {"Montevideo", "Montevideo Standard Time"},
            {"Moscow", "Russian Standard Time"},
            {"Mountain Time (US & Canada)", "Mountain Standard Time"},
            {"Mumbai", "India Standard Time"},
            {"Muscat", "Arabian Standard Time"},
            {"Nairobi", "E. Africa Standard Time"},
            {"New Caledonia", "Central Pacific Standard Time"},
            {"New Delhi", "India Standard Time"},
            {"Newfoundland", "Newfoundland Standard Time"},
            {"Novosibirsk", "N. Central Asia Standard Time"},
            {"Nuku'alofa", "Tonga Standard Time"},
            {"Osaka", "Tokyo Standard Time"},
            {"Pacific Time (US & Canada)", "Pacific Standard Time"},
            {"Paris", "Romance Standard Time"},
            {"Perth", "W. Australia Standard Time"},
            {"Port Moresby", "West Pacific Standard Time"},
            {"Prague", "Central Europe Standard Time"},
            {"Pretoria", "South Africa Standard Time"},
            {"Quito", "SA Pacific Standard Time"},
            {"Rangoon", "Myanmar Standard Time"},
            {"Riga", "FLE Standard Time"},
            {"Riyadh", "Arab Standard Time"},
            {"Rome", "W. Europe Standard Time"},
            {"Samara", "Russia Time Zone 3"},
            {"Samoa", "Samoa Standard Time"},
            {"Santiago", "Pacific SA Standard Time"},
            {"Sapporo", "Tokyo Standard Time"},
            {"Sarajevo", "Central European Standard Time"},
            {"Saskatchewan", "Canada Central Standard Time"},
            {"Seoul", "Korea Standard Time"},
            {"Singapore", "Singapore Standard Time"},
            {"Skopje", "Central European Standard Time"},
            {"Sofia", "FLE Standard Time"},
            {"Solomon Is.", "Central Pacific Standard Time"},
            {"Srednekolymsk", "Russia Time Zone 10"},
            {"Sri Jayawardenepura", "Sri Lanka Standard Time"},
            {"St. Petersburg", "Russian Standard Time"},
            {"Stockholm", "W. Europe Standard Time"},
            {"Sydney", "AUS Eastern Standard Time"},
            {"Taipei", "Taipei Standard Time"},
            {"Tallinn", "FLE Standard Time"},
            {"Tashkent", "West Asia Standard Time"},
            {"Tbilisi", "Georgian Standard Time"},
            {"Tehran", "Iran Standard Time"},
            {"Tijuana", "Pacific Standard Time"},
            {"Tokelau Is.", "Tonga Standard Time"},
            {"Tokyo", "Tokyo Standard Time"},
            {"Ulaanbaatar", "Ulaanbaatar Standard Time"},
            {"Urumqi", "Central Asia Standard Time"},
            {"UTC", "UTC"},
            {"Vienna", "W. Europe Standard Time"},
            {"Vilnius", "FLE Standard Time"},
            {"Vladivostok", "Vladivostok Standard Time"},
            {"Volgograd", "Russian Standard Time"},
            {"Warsaw", "Central European Standard Time"},
            {"Wellington", "New Zealand Standard Time"},
            {"West Central Africa", "W. Central Africa Standard Time"},
            {"Yakutsk", "Yakutsk Standard Time"},
            {"Yerevan", "Caucasus Standard Time"},
            {"Zagreb", "Central European Standard Time"}
        };
}

    Können Sie nun verwenden, dass mit TimeZoneInfo etwa so:

    string windowsZoneId = TZConvert.RailsToWindows("Central Time (US & Canada)");
TimeZoneInfo central = TimeZoneInfo.FindSystemTimeZoneById(windowsZoneId);

    Bewusst sein, ein paar Dinge:

    • Schienen Zuordnungen scheinen relativ fest, aber CLDR Zuordnungen werden gelegentlich aktualisiert. Müssen Sie möglicherweise besuchen Sie diese von Zeit zu Zeit, um sicherzustellen, dass keine neuen Zeitzonen zugeordnet sind, entsprechend.

    • Den Schienen Zeitzone "Chatham Is." können derzeit nicht abgebildet werden, um jede Windows-Zeitzone. (Es ist keine Zeitzone definiert, die für die Chatham-Inseln in Windows.)

    • Wenn Sie wollten, um genauer zu sein und Unterstützung für alle Zonen, können Sie gehen von Schienen IANA/TZDB Zeitzonen statt an Windows-Zeitzonen. Sie könnte dann mit Noda Zeit mit seiner nativen TZDB unterstützen. Dies würde auch zu entfernen die Notwendigkeit der Verwendung von CLDR-Zuordnungen.

    InformationsquelleAutor Matt Johnson

  2. 3

    Habe ich nicht dieses Problem gelöst, aber ich habe eine Arbeit um für dieses Szenario mit https://stackoverflow.com/a/6144229/7670060. Hoffe, das wird helfen.

    Schritt1:

    Finden Sie die Liste der Zeitzone auf Ihrem computer.

    var timeZones = TimeZoneInfo.GetSystemTimeZones();

    Schritt 2: 

    public string OlsonTimeZoneToTimeZoneInfo(string timeInfo)
    {
        var olsonWindowsTimes = new Dictionary<string, string>()
        {
            { "Africa/Bangui", "W. Central Africa Standard Time" },
            { "Africa/Cairo", "Egypt Standard Time" },
            { "Africa/Casablanca", "Morocco Standard Time" },
            { "Africa/Harare", "South Africa Standard Time" },
            { "Africa/Johannesburg", "South Africa Standard Time" },
            { "Africa/Lagos", "W. Central Africa Standard Time" },
            { "Africa/Monrovia", "Greenwich Standard Time" },
            { "Africa/Nairobi", "E. Africa Standard Time" },
            { "Africa/Windhoek", "Namibia Standard Time" },
            { "America/Anchorage", "Alaskan Standard Time" },
            { "America/Argentina/San_Juan", "Argentina Standard Time" },
            { "America/Asuncion", "Paraguay Standard Time" },
            { "America/Bahia", "Bahia Standard Time" },
            { "America/Bogota", "SA Pacific Standard Time" },
            { "America/Buenos_Aires", "Argentina Standard Time" },
            { "America/Caracas", "Venezuela Standard Time" },
            { "America/Cayenne", "SA Eastern Standard Time" },
            { "America/Chicago", "Central Standard Time" },
            { "America/Chihuahua", "Mountain Standard Time (Mexico)" },
            { "America/Cuiaba", "Central Brazilian Standard Time" },
            { "America/Denver", "Mountain Standard Time" },
            { "America/Fortaleza", "SA Eastern Standard Time" },
            { "America/Godthab", "Greenland Standard Time" },
            { "America/Guatemala", "Central America Standard Time" },
            { "America/Halifax", "Atlantic Standard Time" },
            { "America/Indianapolis", "US Eastern Standard Time" },
            { "America/Indiana/Indianapolis", "US Eastern Standard Time" },
            { "America/La_Paz", "SA Western Standard Time" },
            { "America/Los_Angeles", "Pacific Standard Time" },
            { "America/Mexico_City", "Mexico Standard Time" },
            { "America/Montevideo", "Montevideo Standard Time" },
            { "America/New_York", "Eastern Standard Time" },
            { "America/Noronha", "UTC-02" },
            { "America/Phoenix", "US Mountain Standard Time" },
            { "America/Regina", "Canada Central Standard Time" },
            { "America/Santa_Isabel", "Pacific Standard Time (Mexico)" },
            { "America/Santiago", "Pacific SA Standard Time" },
            { "America/Sao_Paulo", "E. South America Standard Time" },
            { "America/St_Johns", "Newfoundland Standard Time" },
            { "America/Tijuana", "Pacific Standard Time" },
            { "Antarctica/McMurdo", "New Zealand Standard Time" },
            { "Atlantic/South_Georgia", "UTC-02" },
            { "Asia/Almaty", "Central Asia Standard Time" },
            { "Asia/Amman", "Jordan Standard Time" },
            { "Asia/Baghdad", "Arabic Standard Time" },
            { "Asia/Baku", "Azerbaijan Standard Time" },
            { "Asia/Bangkok", "SE Asia Standard Time" },
            { "Asia/Beirut", "Middle East Standard Time" },
            { "Asia/Calcutta", "India Standard Time" },
            { "Asia/Colombo", "Sri Lanka Standard Time" },
            { "Asia/Damascus", "Syria Standard Time" },
            { "Asia/Dhaka", "Bangladesh Standard Time" },
            { "Asia/Dubai", "Arabian Standard Time" },
            { "Asia/Irkutsk", "North Asia East Standard Time" },
            { "Asia/Jerusalem", "Israel Standard Time" },
            { "Asia/Kabul", "Afghanistan Standard Time" },
            { "Asia/Kamchatka", "Kamchatka Standard Time" },
            { "Asia/Karachi", "Pakistan Standard Time" },
            { "Asia/Katmandu", "Nepal Standard Time" },
            { "Asia/Kolkata", "India Standard Time" },
            { "Asia/Krasnoyarsk", "North Asia Standard Time" },
            { "Asia/Kuala_Lumpur", "Singapore Standard Time" },
            { "Asia/Kuwait", "Arab Standard Time" },
            { "Asia/Magadan", "Magadan Standard Time" },
            { "Asia/Muscat", "Arabian Standard Time" },
            { "Asia/Novosibirsk", "N. Central Asia Standard Time" },
            { "Asia/Oral", "West Asia Standard Time" },
            { "Asia/Rangoon", "Myanmar Standard Time" },
            { "Asia/Riyadh", "Arab Standard Time" },
            { "Asia/Seoul", "Korea Standard Time" },
            { "Asia/Shanghai", "China Standard Time" },
            { "Asia/Singapore", "Singapore Standard Time" },
            { "Asia/Taipei", "Taipei Standard Time" },
            { "Asia/Tashkent", "West Asia Standard Time" },
            { "Asia/Tbilisi", "Georgian Standard Time" },
            { "Asia/Tehran", "Iran Standard Time" },
            { "Asia/Tokyo", "Tokyo Standard Time" },
            { "Asia/Ulaanbaatar", "Ulaanbaatar Standard Time" },
            { "Asia/Vladivostok", "Vladivostok Standard Time" },
            { "Asia/Yakutsk", "Yakutsk Standard Time" },
            { "Asia/Yekaterinburg", "Ekaterinburg Standard Time" },
            { "Asia/Yerevan", "Armenian Standard Time" },
            { "Atlantic/Azores", "Azores Standard Time" },
            { "Atlantic/Cape_Verde", "Cape Verde Standard Time" },
            { "Atlantic/Reykjavik", "Greenwich Standard Time" },
            { "Australia/Adelaide", "Cen. Australia Standard Time" },
            { "Australia/Brisbane", "E. Australia Standard Time" },
            { "Australia/Darwin", "AUS Central Standard Time" },
            { "Australia/Hobart", "Tasmania Standard Time" },
            { "Australia/Perth", "W. Australia Standard Time" },
            { "Australia/Sydney", "AUS Eastern Standard Time" },
            { "Etc/GMT", "UTC" },
            { "Etc/GMT+11", "UTC-11" },
            { "Etc/GMT+12", "Dateline Standard Time" },
            { "Etc/GMT+2", "UTC-02" },
            { "Etc/GMT-12", "UTC+12" },
            { "Europe/Amsterdam", "W. Europe Standard Time" },
            { "Europe/Athens", "GTB Standard Time" },
            { "Europe/Belgrade", "Central Europe Standard Time" },
            { "Europe/Berlin", "W. Europe Standard Time" },
            { "Europe/Brussels", "Romance Standard Time" },
            { "Europe/Budapest", "Central Europe Standard Time" },
            { "Europe/Dublin", "GMT Standard Time" },
            { "Europe/Helsinki", "FLE Standard Time" },
            { "Europe/Istanbul", "GTB Standard Time" },
            { "Europe/Kiev", "FLE Standard Time" },
            { "Europe/London", "GMT Standard Time" },
            { "Europe/Minsk", "E. Europe Standard Time" },
            { "Europe/Moscow", "Russian Standard Time" },
            { "Europe/Paris", "Romance Standard Time" },
            { "Europe/Sarajevo", "Central European Standard Time" },
            { "Europe/Warsaw", "Central European Standard Time" },
            { "Indian/Mauritius", "Mauritius Standard Time" },
            { "Pacific/Apia", "Samoa Standard Time" },
            { "Pacific/Auckland", "New Zealand Standard Time" },
            { "Pacific/Fiji", "Fiji Standard Time" },
            { "Pacific/Guadalcanal", "Central Pacific Standard Time" },
            { "Pacific/Guam", "West Pacific Standard Time" },
            { "Pacific/Honolulu", "Hawaiian Standard Time" },
            { "Pacific/Pago_Pago", "UTC-11" },
            { "Pacific/Port_Moresby", "West Pacific Standard Time" },
            { "Pacific/Tongatapu", "Tonga Standard Time" }
        };

        string timeInfoKey = string.Empty;
        if (olsonWindowsTimes.ContainsValue(timeInfo))
            timeInfoKey = olsonWindowsTimes.FirstOrDefault(x => x.Value == timeInfo).Key;

        return timeInfoKey;
    }

    Schritt 3: 

    var finalResult=ConvertTimeZone(Datetime.UtcNow,"Central Standard Time");


public DateTime ConvertTimeZone(DateTime dateTime, string timeInfo)
    {
        var result = OlsonTimeZoneToTimeZoneInfo(timeInfo);
        if (result != null)
        {
            var finalTimeZone = TimeZoneInfo.FindSystemTimeZoneById(result);
            dateTime = (dateTime != null ? TimeZoneInfo.ConvertTimeFromUtc(dateTime != null ? dateTime : DateTime.UtcNow, finalTimeZone) : DateTime.UtcNow);
        }
        return dateTime;
    }

    InformationsquelleAutor Riyas

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