How to manipulate a file's date in order to change its position while sorting a directory in File Explorer?

Solution 1:

You might refresh the Explorer view by pressing F5. This should re-sort the items.

As additional note, rather than write your own PowerShell solution, you could use the donation-ware Attribute Changer that can do dates and times and more and sets itself up as a right-click context menu entry of Explorer:

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