All Linux has changed time AKA ctime, access time AKA atime, and modified time AKA mtime. Some Linux also has created time/birth time AKA crtime. Like universally all these may be accessed via "stat" with Bash. You may read "stat --help" in your terminal for more specific information. Changed time is last time metadata changed, and others are self explanatory. On some distros "crtime" may be replaced by "btime" and/or "ctime" may be replaved by "chgtime"....