Posted Date - Field Arrangement - Reflect Locale Format OR Combine Fields

[Lucanos]

In the "Quick Edit" form, as well as the Classic Editor's "Publish" Metabox, show 5 fields for entering the Publish Date for a Page/Post.

[Month (Select)] [Day (Text)], [Year (Text)] @ [Hour (Text)]:[Minutes (Text)]

This is the American format, with Month first, but is not a common format outside of the US.

Even when the Date format is changed in Settings, that selected format is not used to arrange the Date Entry fields noted above.

Suggestion: Integrate a JS Library which allows DateTimes to be entered in various formats, in a single field, and then be processed to produce a value in the format which is required.

Example: I should be able to write a DateTime as "2019-2-28 10:00" and for that to be converted to "2 Feb 2019 10AM".

[Lucanos]

DateTime Fields in QuickEdit

[Lucanos]

DateTime Fields in Classic Editor

[Rarst]

Related #43028