DateParseHandling not carried through from SerializerSettings to DefaultStreamingJsonReader

Given the following JSON returned from a query result

{ "value": "2021-06-21T10:16:56.9714243-8:00" }

The value returned by DefaultJsonStreamReader is

a) Always in the local time zone

b) Coverted from the original timezone to the local timezone

However, even if the DefaultSerializer is overridden with DateParseHandling.DateTimeOffset, this behavior persists.