Hi,

The dired ignored the options like "--time=ctime" in the variable
`dired-listing-switches' on Windows OS.

 I traced the code and found dired will use the functions in the
`ls-lisp.el' instead of calling the real command "/usr/bin/ls", and
the "ls-lisp.el" didn't process the "--time=ctime" option.

The attached PATCH will convert the "--time=ctime" to "-c"... in the
"ls-lisp.el", and then the dired will display the desired time in its
time column.

Here is the verification code (on Windows OS), try it one line and
close the dired buffer then try next line.

(dired "/tmp/aa" "-al --sort=time") ; as "-al -t"

(dired "/tmp/aa" "-al --time=ctime") ; as "al -c"

(dired "/tmp/aa" "-al --time=atime") ; as "al -u"

Please help review the changes and approve them. Thanks