Fix issue where macOS machines set to Morocco/Casablanca Timezone were one hour behind (UUM-87263)

[kkukshtel-unity]

Backport of #2103
cherrypick was clean

• Should this pull request have release notes?
  • Yes
  • No
• Do these changes need to be back ported?
  • Yes
  • No
• Do these changes need to be upstreamed to mono/mono or dotnet/runtime repositories?
  • Yes
  • No

Reviewers: please consider these questions as well! ❤️

Fixed UUM-87263 @kkukshtel:
Mono: Fixed issue where macOS machines set to Morocco/Casablanca Timezone were one hour behind

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