System.TimeZoneNotFoundException issue in Blazor WASM

[VengateshManiraj]

Describe the bug

TimeZoneInfo is not found in Blazor WASM

To Reproduce

Create the WASM project.
Convert time with some specific timezone like the below code

TimeZoneInfo.ConvertTime(date, TimeZoneInfo.FindSystemTimeZoneById(timezone))

Exceptions

Error: System.TimeZoneNotFoundException: The time zone ID 'XXXX' was not found on the local computer.
---->System.IO.FileNotFoundException: Could not find file '/usr/share/zoneinfo/XXXX'.

Further technical details

• VS Version 16.8.0 Preview 6.0
• .NET SDK (reflecting any global.json):
  Version: 5.0.101
  Commit: d05174dc5a

Runtime Environment:
OS Name: Windows
OS Version: 10.0.17763
OS Platform: Windows
RID: win10-x64
Base Path: C:\Program Files\dotnet\sdk\5.0.101\

Host (useful for support):
Version: 5.0.1
Commit: b02e13a

[Dotnet-GitSync-Bot]

I couldn't figure out the best area label to add to this issue. If you have write-permissions please help me learn by adding exactly one area label.

[radical]

/cc @lewing @tqiu8

[tqiu8]

@VengateshManiraj what timezones are missing exactly?

[VengateshManiraj]

@tqiu8 I couldn't find the Asia/Culcutta.

Comparing to the Server side app, the client-side app having 14 timezones only.

Server-side App:
TimeZoneInfo.GetSystemTimeZones() - 139 timezones.

Client-side App:
TimeZoneInfo.GetSystemTimeZones() - 14 timezones.

[lewing]

Ok asia/calcutta should be fixed by installing 5.0.1, the reduced list of timezones is tracked #44840