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环境

# dotnet --info
.NET Core SDK (reflecting any global.json):
 Version:   2.2.202
 Commit:    8a7ff6789d

Runtime Environment:
 OS Name:     centos
 OS Version:  7
 OS Platform: Linux
 RID:         centos.7-x64
 Base Path:   /usr/share/dotnet/sdk/2.2.202/

Host (useful for support):
  Version: 2.2.3
  Commit:  6b8ad509b6

.NET Core SDKs installed:
  2.2.202 [/usr/share/dotnet/sdk]

.NET Core runtimes installed:
  Microsoft.AspNetCore.All 2.2.3 [/usr/share/dotnet/shared/Microsoft.AspNetCore.All]
  Microsoft.AspNetCore.App 2.2.3 [/usr/share/dotnet/shared/Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 2.2.3 [/usr/share/dotnet/shared/Microsoft.NETCore.App]

To install additional .NET Core runtimes or SDKs:
  https://aka.ms/dotnet-download

错误

Unhandled Exception: System.TimeZoneNotFoundException: The time zone ID 'China Standard Time' was not found on the local computer. ---> System.IO.FileNotFoundException: Could not find file '/usr/share/zoneinfo/China Standard Time'. 
   at Interop.ThrowExceptionForIoErrno(ErrorInfo errorInfo, String path, Boolean isDirectory, Func`2 errorRewriter) 
   at Microsoft.Win32.SafeHandles.SafeFileHandle.Open(String path, OpenFlags flags, Int32 mode) 
   at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, FileOptions options)
   at Internal.IO.File.ReadAllBytes(String path) 
   at System.TimeZoneInfo.TryGetTimeZoneFromLocalMachine(String id, TimeZoneInfo& value, Exception& e) 
   --- End of inner exception stack trace --- 
   at System.TimeZoneInfo.FindSystemTimeZoneById(String id)

System.TimeZoneNotFoundException:“The time zone ID 'Asia/Shanghai' was not found on the local computer.”

Google 一番，找到这个帖子： https://dejanstojanovic.net/aspnet/2018/july/differences-in-time-zones-in-net-core-on-windows-and-linux-host-os/  ，是由于 Win 与 Unix 时区信息不一致导致的，也有点太弱了。

Win

Dateline Standard Time 
UTC-11 
Aleutian Standard Time 
Hawaiian Standard Time 
Marquesas Standard Time 
Alaskan Standard Time 
UTC-09 
Pacific Standard Time (Mexico) 
UTC-08 
Pacific Standard Time 
US Mountain Standard Time 
Mountain Standard Time (Mexico) 
Mountain Standard Time 
Central America Standard Time 
Central Standard Time 
Easter Island Standard Time 
Central Standard Time (Mexico) 
Canada Central Standard Time 
SA Pacific Standard Time 
Eastern Standard Time (Mexico) 
Eastern Standard Time 
Haiti Standard Time 
Cuba Standard Time 
US Eastern Standard Time 
Turks And Caicos Standard Time 
Paraguay Standard Time 
Atlantic Standard Time 
Venezuela Standard Time 
Central Brazilian Standard Time 
SA Western Standard Time 
Pacific SA Standard Time 
Newfoundland Standard Time 
Tocantins Standard Time 
E. South America Standard Time 
SA Eastern Standard Time 
Argentina Standard Time 
Greenland Standard Time 
Montevideo Standard Time 
Magallanes Standard Time 
Saint Pierre Standard Time 
Bahia Standard Time 
UTC-02 
Mid-Atlantic Standard Time 
Azores Standard Time 
Cape Verde Standard Time 
UTC 
Morocco Standard Time 
GMT Standard Time 
Greenwich Standard Time 
W. Europe Standard Time 
Central Europe Standard Time 
Romance Standard Time 
Sao Tome Standard Time 
Central European Standard Time 
W. Central Africa Standard Time 
Jordan Standard Time 
GTB Standard Time 
Middle East Standard Time 
Egypt Standard Time 
E. Europe Standard Time 
Syria Standard Time 
West Bank Standard Time 
South Africa Standard Time 
FLE Standard Time 
Israel Standard Time 
Kaliningrad Standard Time 
Sudan Standard Time 
Libya Standard Time 
Namibia Standard Time 
Arabic Standard Time 
Turkey Standard Time 
Arab Standard Time 
Belarus Standard Time 
Russian Standard Time 
E. Africa Standard Time 
Iran Standard Time 
Arabian Standard Time 
Astrakhan Standard Time 
Azerbaijan Standard Time 
Russia Time Zone 3 
Mauritius Standard Time 
Saratov Standard Time 
Georgian Standard Time 
Caucasus Standard Time 
Afghanistan Standard Time 
West Asia Standard Time 
Ekaterinburg Standard Time 
Pakistan Standard Time 
India Standard Time 
Sri Lanka Standard Time 
Nepal Standard Time 
Central Asia Standard Time 
Bangladesh Standard Time 
Omsk Standard Time 
Myanmar Standard Time 
SE Asia Standard Time 
Altai Standard Time 
W. Mongolia Standard Time 
North Asia Standard Time 
N. Central Asia Standard Time 
Tomsk Standard Time 
China Standard Time 
North Asia East Standard Time 
Singapore Standard Time 
W. Australia Standard Time 
Taipei Standard Time 
Ulaanbaatar Standard Time 
North Korea Standard Time 
Aus Central W. Standard Time 
Transbaikal Standard Time 
Tokyo Standard Time 
Korea Standard Time 
Yakutsk Standard Time 
Cen. Australia Standard Time 
AUS Central Standard Time 
E. Australia Standard Time 
AUS Eastern Standard Time 
West Pacific Standard Time 
Tasmania Standard Time 
Vladivostok Standard Time 
Lord Howe Standard Time 
Bougainville Standard Time 
Russia Time Zone 10 
Magadan Standard Time 
Norfolk Standard Time 
Sakhalin Standard Time 
Central Pacific Standard Time 
Russia Time Zone 11 
New Zealand Standard Time 
UTC+12 
Fiji Standard Time 
Kamchatka Standard Time 
Chatham Islands Standard Time 
UTC+13 
Tonga Standard Time 
Samoa Standard Time 
Line Islands Standard Time

Unix

Pacific/Niue 
Pacific/Pago_Pago 
Pacific/Midway 
Pacific/Rarotonga 
America/Adak 
Pacific/Honolulu 
Pacific/Tahiti 
Pacific/Marquesas 
America/Metlakatla 
America/Sitka 
America/Nome 
America/Juneau 
America/Yakutat 
America/Anchorage 
Pacific/Gambier 
America/Los_Angeles 
America/Vancouver 
America/Whitehorse 
America/Dawson 
America/Tijuana 
Pacific/Pitcairn 
America/Hermosillo 
America/Chihuahua 
America/Mazatlan 
America/Yellowknife 
America/Phoenix 
America/Boise 
America/Denver 
America/Edmonton 
America/Cambridge_Bay 
America/Fort_Nelson 
America/Creston 
America/Dawson_Creek 
America/Ojinaga 
America/Inuvik 
America/Belize 
America/Winnipeg 
America/Rainy_River 
America/Resolute 
America/Regina 
America/Swift_Current 
America/Matamoros 
America/Monterrey 
America/Managua 
America/Merida 
America/Costa_Rica 
America/Mexico_City 
America/Guatemala 
America/Tegucigalpa 
America/El_Salvador 
America/Rankin_Inlet 
America/Bahia_Banderas 
America/North_Dakota/New_Salem 
America/Indiana/Knox 
America/North_Dakota/Beulah 
America/Indiana/Tell_City 
America/North_Dakota/Center 
America/Chicago 
America/Menominee 
Pacific/Easter 
Pacific/Galapagos 
America/Rio_Branco 
America/Eirunepe 
America/Bogota 
America/Havana 
America/Kentucky/Louisville 
America/Atikokan 
America/Indiana/Indianapolis 
America/Nassau 
America/Pangnirtung 
America/Iqaluit 
America/Thunder_Bay 
America/Kentucky/Monticello 
America/Indiana/Vevay 
America/Nipigon 
America/Port-au-Prince 
America/Detroit 
America/New_York 
America/Panama 
America/Cancun 
America/Jamaica 
America/Indiana/Vincennes 
America/Cayman 
America/Indiana/Winamac 
America/Indiana/Marengo 
America/Indiana/Petersburg 
America/Toronto 
America/Guayaquil 
America/Lima 
America/Manaus 
America/Boa_Vista 
America/Porto_Velho 
America/Cuiaba 
America/Campo_Grande 
America/Goose_Bay 
America/Kralendijk 
America/Curacao 
America/Grenada 
America/Puerto_Rico 
America/St_Lucia 
America/Marigot 
America/St_Vincent 
America/Grand_Turk 
America/Dominica 
America/Santo_Domingo 
Atlantic/Bermuda 
America/Port_of_Spain 
America/St_Barthelemy 
America/Lower_Princes 
America/Anguilla 
America/St_Kitts 
America/Antigua 
America/Tortola 
America/St_Thomas 
America/Montserrat 
America/Martinique 
America/Blanc-Sablon 
America/Thule 
America/Barbados 
America/Aruba 
America/Halifax 
America/Guadeloupe 
America/Moncton 
America/Glace_Bay 
America/La_Paz 
America/Santiago 
America/Guyana 
America/Asuncion 
America/Caracas 
America/St_Johns 
America/Argentina/La_Rioja 
America/Argentina/Ushuaia 
America/Argentina/Rio_Gallegos 
America/Argentina/Mendoza 
America/Argentina/San_Juan 
America/Argentina/Catamarca 
America/Argentina/Jujuy 
America/Argentina/Salta 
America/Argentina/Buenos_Aires 
America/Argentina/Tucuman 
America/Argentina/Cordoba 
America/Maceio 
America/Araguaina 
America/Bahia 
America/Sao_Paulo 
America/Santarem 
America/Recife 
America/Belem 
America/Fortaleza 
Antarctica/Palmer 
Atlantic/Stanley 
America/Cayenne 
America/Punta_Arenas 
Antarctica/Rothera 
America/Miquelon 
America/Paramaribo 
America/Montevideo 
America/Godthab 
America/Argentina/San_Luis 
America/Noronha 
Atlantic/South_Georgia 
Atlantic/Azores 
Atlantic/Cape_Verde 
America/Scoresbysund 
Europe/Isle_of_Man 
Antarctica/Troll 
Africa/Dakar 
Africa/Ouagadougou 
Africa/Bissau 
Africa/Nouakchott 
Europe/Jersey 
Africa/Abidjan 
Atlantic/St_Helena 
Africa/Banjul 
Africa/Freetown 
Europe/London 
Africa/Lome 
Africa/Conakry 
Europe/Guernsey 
Africa/Accra 
Atlantic/Reykjavik 
America/Danmarkshavn 
Africa/Bamako 
Africa/Monrovia 
Africa/Casablanca 
Atlantic/Canary 
Africa/El_Aaiun 
Atlantic/Faroe 
Europe/Lisbon 
Atlantic/Madeira 
Europe/Vaduz 
Europe/Malta 
Europe/Podgorica 
Europe/Monaco 
Europe/Rome 
Europe/Luxembourg 
Europe/Amsterdam 
Europe/Oslo 
Europe/Andorra 
Africa/Algiers 
Europe/Tirane 
Europe/Vatican 
Europe/Vienna 
Europe/Sarajevo 
Europe/Brussels 
Europe/Zurich 
Africa/Tunis 
Europe/Prague 
Europe/Berlin 
Europe/Busingen 
Europe/Copenhagen 
Europe/Warsaw 
Europe/Madrid 
Africa/Ceuta 
Europe/San_Marino 
Europe/Skopje 
Europe/Belgrade 
Arctic/Longyearbyen 
Europe/Paris 
Europe/Budapest 
Europe/Ljubljana 
Europe/Zagreb 
Europe/Gibraltar 
Europe/Stockholm 
Europe/Bratislava 
Europe/Dublin 
Africa/Sao_Tome 
Africa/Luanda 
Africa/Porto-Novo 
Africa/Kinshasa 
Africa/Brazzaville 
Africa/Bangui 
Africa/Malabo 
Africa/Douala 
Africa/Ndjamena 
Africa/Libreville 
Africa/Lagos 
Africa/Niamey 
Africa/Kigali 
Africa/Blantyre 
Africa/Maputo 
Africa/Harare 
Africa/Lusaka 
Africa/Lubumbashi 
Africa/Gaborone 
Africa/Bujumbura 
Africa/Khartoum 
Asia/Gaza 
Asia/Hebron 
Europe/Bucharest 
Europe/Kiev 
Europe/Mariehamn 
Europe/Sofia 
Europe/Athens 
Europe/Helsinki 
Africa/Cairo 
Europe/Tallinn 
Asia/Damascus 
Asia/Nicosia 
Europe/Zaporozhye 
Asia/Amman 
Europe/Kaliningrad 
Europe/Uzhgorod 
Asia/Beirut 
Africa/Tripoli 
Europe/Vilnius 
Europe/Chisinau 
Europe/Riga 
Asia/Famagusta 
Asia/Jerusalem 
Africa/Maseru 
Africa/Mbabane 
Africa/Johannesburg 
Africa/Windhoek 
Asia/Aden 
Asia/Qatar 
Asia/Bahrain 
Asia/Riyadh 
Asia/Kuwait 
Asia/Baghdad 
Africa/Addis_Ababa 
Africa/Djibouti 
Africa/Mogadishu 
Africa/Juba 
Africa/Asmara 
Indian/Mayotte 
Africa/Dar_es_Salaam 
Indian/Antananarivo 
Africa/Kampala 
Indian/Comoro 
Africa/Nairobi 
Europe/Istanbul 
Europe/Minsk 
Europe/Kirov 
Europe/Moscow 
Europe/Volgograd 
Europe/Simferopol 
Antarctica/Syowa 
Asia/Tehran 
Asia/Yerevan 
Asia/Baku 
Europe/Saratov 
Europe/Astrakhan 
Europe/Ulyanovsk 
Asia/Tbilisi 
Asia/Dubai 
Asia/Muscat 
Indian/Mauritius 
Indian/Reunion 
Europe/Samara 
Indian/Mahe 
Asia/Kabul 
Indian/Kerguelen 
Asia/Atyrau 
Indian/Maldives 
Antarctica/Mawson 
Asia/Karachi 
Asia/Dushanbe 
Asia/Ashgabat 
Asia/Tashkent 
Asia/Samarkand 
Asia/Aqtobe 
Asia/Aqtau 
Asia/Oral 
Asia/Yekaterinburg 
Asia/Colombo 
Asia/Kolkata 
Asia/Kathmandu 
Asia/Dhaka 
Asia/Thimphu 
Asia/Almaty 
Asia/Qyzylorda 
Asia/Urumqi 
Indian/Chagos 
Asia/Bishkek 
Asia/Omsk 
Antarctica/Vostok 
Indian/Cocos 
Asia/Yangon 
Indian/Christmas 
Antarctica/Davis 
Asia/Tomsk 
Asia/Barnaul 
Asia/Hovd 
Asia/Ho_Chi_Minh 
Asia/Vientiane 
Asia/Phnom_Penh 
Asia/Bangkok 
Asia/Krasnoyarsk 
Asia/Novokuznetsk 
Asia/Novosibirsk 
Asia/Jakarta 
Asia/Pontianak 
Antarctica/Casey 
Australia/Perth 
Asia/Brunei 
Asia/Makassar 
Asia/Macau 
Asia/Shanghai 
Asia/Choibalsan 
Asia/Hong_Kong 
Asia/Irkutsk 
Asia/Kuching 
Asia/Kuala_Lumpur 
Asia/Manila 
Asia/Singapore 
Asia/Taipei 
Asia/Ulaanbaatar 
Australia/Eucla 
Asia/Dili 
Asia/Jayapura 
Asia/Tokyo 
Asia/Seoul 
Pacific/Palau 
Asia/Pyongyang 
Asia/Chita 
Asia/Yakutsk 
Asia/Khandyga 
Australia/Broken_Hill 
Australia/Adelaide 
Australia/Darwin 
Australia/Currie 
Australia/Hobart 
Australia/Melbourne 
Australia/Sydney 
Australia/Brisbane 
Australia/Lindeman 
Pacific/Saipan 
Pacific/Guam 
Pacific/Chuuk 
Antarctica/DumontDUrville 
Pacific/Port_Moresby 
Asia/Ust-Nera 
Asia/Vladivostok 
Australia/Lord_Howe 
Pacific/Bougainville 
Asia/Srednekolymsk 
Pacific/Kosrae 
Antarctica/Macquarie 
Asia/Magadan 
Pacific/Noumea 
Pacific/Norfolk 
Pacific/Pohnpei 
Asia/Sakhalin 
Pacific/Guadalcanal 
Pacific/Efate 
Asia/Anadyr 
Pacific/Fiji 
Pacific/Tarawa 
Pacific/Kwajalein 
Pacific/Majuro 
Pacific/Nauru 
Pacific/Auckland 
Antarctica/McMurdo 
Asia/Kamchatka 
Pacific/Funafuti 
Pacific/Wake 
Pacific/Wallis 
Pacific/Chatham 
Pacific/Apia 
Pacific/Enderbury 
Pacific/Fakaofo 
Pacific/Tongatapu 
Pacific/Kiritimati

在官方的 github 中也有类似的 Issues ，需要转一个转换的工作，可以借助第三方的一个包  TimeZoneConverter ：

TimeZoneInfo tzi = TZConvert.GetTimeZoneInfo("Central Standard Time");
TimeZoneInfo tzi = TZConvert.GetTimeZoneInfo("America/New_York");

#修改
RecurringJob.AddOrUpdate(() => SchedulePollingTaskBackgroundJobAsync(), @"30 16,20 * * *", TZConvert.GetTimeZoneInfo("Asia/Shanghai"));

解决问题

REFER:
https://github.com/dotnet/corefx/issues/11897
https://github.com/mj1856/TimeZoneConverter
https://stackoverflow.com/questions/47848111/how-should-i-fetch-timezoneinfo-in-a-platform-agnostic-way
https://devblogs.microsoft.com/dotnet/cross-platform-time-zones-with-net-core/