@
Rellwood -see posts 65-70
Create Date is not available on Linux and OSX, i.e. it's only available on Windows.
And on Windows the Create Date is the date/time that a particular instance of a file was created. Below you see what happens when a file is
copied, the copy's Created date/time is set to when the copy took place.
AFAIK the create date/time of the files are
not stored when they are moved into a ZIP or RAR archive. When I unpack a zip with Windows Explorer or WinRAR the create date of the files in the unpacked folder is the current date/time.
So I would assume when calibre extracts ebook files from a ZIP or RAR the create date/time will be the current date/time - which is effectively the same as calibre's timestamp/Date column.
BR