Suppose I have a zip archive file with many files in it. I can get a list of the files in the archive with:
Import["zipfile.zip"]
I can get data out of one of the files inside the archive with:
Import["zipfile.zip","somefile.txt"]
I can get the date the zip file was created with
FileDate["zipfile.zip"]
But I can't figure out how to get the dates of the files inside the zip file.