'Retrieve this file\'s last modification time.  This is the time of
modification recorded in the zipfile.
@return: a number of seconds since the epoch.'

def getModificationTime(self):

    pathInArchive = _coerceToFilesystemEncoding('', self.pathInArchive)
    return time.mktime((self.archive.zipfile.NameToInfo[pathInArchive].date_time + (0, 0, 0)))
