I wouldn’t call it a “feature request”. This is a bug.
Windows 11 Pro 22H2 build 22621.2428 (English).
Obsidian v. 1.4.16.
Windows time format: YYYY-MM-DD
but Obsidian shows: MM/DD/YYYY (the stupidest possible format).
All we need is Date/Time format in “Apperance” (in the same way that we could define it in “Templates”).