Default the timezone to UTC if it is not resolved. #27505
Merged
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Description
Browsers may not correctly resolve the machine's timezone in some cases. In the current implementation,
this results in an exception being thrown by .NET Core (WASM). This code defaults the timezone to UTC
when the timezone cannot be resolved.
Fixes dotnet/runtime#44154
Port of #27444
Customer impact
Blazor WASM applications may not start on some browsers that do not correctly resolve timezone information
Regression
No.
Risk
We default the app to using UTC timezone which makes it a fairly low risk change. This does not affect browsers / apps where timezones can be correctly resolved which is the majority of our users.