I have a flow that takes data from a list in SharePoint (populated by a Canvas App form), and then populates a word template, then creates a Word.docx from that template using the date and time from the column in the list. It then does other stuff, but that doesn't apply to the issue I'm having.
The field in the Word template is just a Plain Text Content Control field:

You can see the appropriate portions of the flow below:

The list item shows the correct time local to us (-5 EST United States/Canada) as 10:35 AM:

When it does the file creation and appends the Date and Time field from the list into the filename, we get T14_35, four hours ahead:

And then the content of the document shows the Date and Time field incorrectly as well:

I'm not too worried about the filename as I'm just gonna delete it later anyway. But the content of the file needs to show the time in the correct time zone. I'll even take a workaround to get it to display correctly. 😄