Variable: clean-buffer-list-delay-special
clean-buffer-list-delay-special is a customizable variable defined in
midnight.el.gz.
Value
3600
Documentation
The number of seconds before some buffers become eligible for autokilling.
Buffers matched by clean-buffer-list-kill-regexps and
clean-buffer-list-kill-buffer-names are killed if they were last
displayed more than this many seconds ago.
Source Code
;; Defined in /usr/src/emacs/lisp/midnight.el.gz
(defcustom clean-buffer-list-delay-special 3600
"The number of seconds before some buffers become eligible for autokilling.
Buffers matched by `clean-buffer-list-kill-regexps' and
`clean-buffer-list-kill-buffer-names' are killed if they were last
displayed more than this many seconds ago."
:type 'natnum)