Hi all,

There are quite few documents in which I want to update the date stamp to the last update time.

I like that #+DATE keyword value is used aptly in latex/pdf and html exports.

But I couldn't find an elegant way for that date to be updated to today's (last updated) date.

I came up with the below. But please let me know if there's an inbuilt way to do the same.

PART 1: Config in init.el

;; Update TODAY macro with current date

(defun modi/org-update-TODAY-macro (&rest ignore)

"Update TODAY macro to hold string with current date."

(interactive)

(when (derived-mode-p 'org-mode)

(save-excursion

(goto-char (point-min))

(while (re-search-forward

"^\\s-*#\\+MACRO:\\s-+TODAY"

nil 'noerror)

(forward-line 0)

(when (looking-at ".*TODAY\\(.*\\)")

(replace-match

(concat " "

(format-time-string "%b %d %Y, %a" (current-time)))

:fixedcase :literal nil 1))))))

(add-hook 'org-export-before-processing-hook #'modi/org-update-TODAY-macro)

PART 2: org document where I want the #+DATE to auto update

#+MACRO: TODAY [current date is auto-inserted when exporting]

#+DATE: {{{TODAY}}}