Re: How can I calculate the "age" of a headline?

[John Kitchin <jkitchin@andrew.cmu.edu>]

I think this does what you want. I do not know if it would be easy to
get in a tabular agenda view though.

* Calculate age of this headline

#+BEGIN_SRC emacs-lisp
(org-narrow-to-subtree)
(org-time-stamp-to-now
 (car
  (cl-sort (org-element-map (org-element-parse-buffer) 'headline
	     (lambda (headline)
	       (org-element-property
		:raw-value
		(org-element-property :deadline headline))))
	   'org-time<)))
#+END_SRC

#+RESULTS:
: -14



** task 1
   DEADLINE: <2014-08-12 Tue>


** task 2
   DEADLINE: <2014-08-05 Tue>

M <Elwood151@web.de> writes:

> In my task lists, I'm working with scheduled and deadline dates.
> However, it would also often be very interesting, how "old" a task is, how
> long it is lurking around on my lists..
>
> Therefore it would be interesting to find the oldest timestamp below this
> heading and calculate the difference in days to today.
>
> Is that possible with org-mode already?
> Could I display this information in a tabular agenda view in a column?
>
> Kind regards
>
> Martin
>
>
>
>

-- 
-----------------------------------
John Kitchin
Professor
Doherty Hall A207F
Department of Chemical Engineering
Carnegie Mellon University
Pittsburgh, PA 15213
412-268-7803
http://kitchingroup.cheme.cmu.edu