FreeFileSync Forum

You can discuss as much as you want.
Instead of re-inventing the wheel, (at least the Windows version of) FFS uses the standard Windows routine (the same one as used by Windows File Explorer) for copying files and folders, in which copied over folders will have a date/time as per the moment of ...

+4...
the use of the external Nirsoft tool is a lightly suboptimal solution, (double effort for two progs, practicable only use of cli-scripts..)
I would suggest to implement the easy way of changing the modifiction date of dirs
- at the start of a new sync, store the modification date of the source ...