I imported number of files from vimwiki diay to dokuwiki. Naturally, no meta files exist for new pages, so they've been created upon first visit via web interface. Unfortunately, ctime (change timestamp) value from linux file system was reflected in "modified" value in metadata, not in "created" field, which is used in default sorting of blog summary in dokuwiki. During import I've incorporated the "creation" time of individual file into the file name, and changed config in dokuwiki.blog.dateprefix = "%Y:%Y-%m-%d". Now, I created script which replaces "created" value, or, if absent, "modified" value, in meta file so it reflects the date, incorporated in the filename.