Variable: tar-copy-preserve-time
tar-copy-preserve-time is a customizable variable defined in
tar-mode.el.gz.
Value
nil
Documentation
Non-nil means that Tar mode preserves the timestamp when copying files.
This variable was added, or its default value changed, in Emacs 27.1.
Probably introduced at or before Emacs version 27.1.
Source Code
;; Defined in /usr/src/emacs/lisp/tar-mode.el.gz
(defcustom tar-copy-preserve-time nil
"Non-nil means that Tar mode preserves the timestamp when copying files."
:type 'boolean
:version "27.1")