Change Folder Date is a portable app that allows you to change the creation date, last modified date, and last accessed date for your files and folders.
It is meant as simple means to alter file and folder dates, and by keeping it simple, Change Folder Date doesn't support drag n' drop, so you will need to navigate to their location so you can add them to the job.
Change Folder Date UI is straightforward, allowing all types of users the opportunity to use it. Select your files or folder for modification and choose date/time, etc., and hit the change button on the popup. Keep in mind, this action is one grouping per selection, meaning that the files you add are the ones for that particular batch date changes, so if you realize you missed one and attempt to add it to the batch, you will end up with just that one. That said, it performs as intended with little fuss.