Fix inconsistency between Chrome and Firefox

[marcospassos]

Summary

• Updated the locale in the fromZonedDate method from 'en-US' to 'sv-SE' to ensure correct date formatting.
• Modified the regex pattern in the fromZonedDate method to match the new date format.

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules
• I have checked my code and corrected any misspellings

[codeclimate]

Code Climate has analyzed commit 50c7473 and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 100.0% (50% is the threshold).

This pull request will bring the total coverage in the repository to 100.0% (0.0% change).

View more on Code Climate.