I use “A Better Finder Attributes” from publicspace.net.
What you may be seeing is the Created or Modified date - these are the two commonly displayed in Finder/Explorer.
ABFA will display Created, Modified & Exif data. The operation to fix these files is to “Copy EXIF Timestamp to Created/Modified”.
The app is also useful if you use multiple cameras, or the time-zone is incorrect. The values can be skewed by minutes, hours or any required value.
Not sure if this is a Mac only app.
Good luck.