Hi,

I think you'd better send this patch to the repective maillist, e.g.
emacs-orgmode@gnu.org, for the fix to be applied properly in terms of
Org versions/etc.

regards,
Alex

Narendra Joshi <narendraj9@gmail.com> writes:

> Hi,
>
> While opening `org-agenda', I am getting an Arithmetic error if there
> are entries in an org file with timestamps of the form <... ++0d>, I
> have attached a patch for it. It would be great if someone can submit it
> on my behalf.
>
> diff --git a/lisp/org/org.el b/lisp/org/org.el
> index 02a7a0c..abb2269 100644
> --- a/lisp/org/org.el
> +++ b/lisp/org/org.el
> @@ -17250,11 +17250,11 @@ org-closest-date
>  		     (- cday (1+ (floor (/ missing-hours 24)))))
>  		n2 (+ cday (floor (/ (- dn missing-hours) 24))))))
>         ((eq dw 'day)
> -	(setq n1 (+ sday (* dn (floor (/ (- cday sday) dn))))
> +	(setq n1 (+ sday (* dn (floor (if (= dn 0) 0 (/ (- cday sday) dn)))))
>  	      n2 (+ n1 dn)))
>         ((eq dw 'year)
>  	(setq d (nth 1 start) m (car start) y1 (nth 2 start) y2 (nth 2 current))
> -	(setq y1 (+ (* (floor (/ (- y2 y1) dn)) dn) y1))
> +	(setq y1 (+ (* (floor (if (= dn 0) 0 (/ (- y2 y1) dn))) dn) y1))
>  	(setq date1 (list m d y1)
>  	      n1 (calendar-absolute-from-gregorian date1)
>  	      date2 (list m d (+ y1 (* (if (< n1 cday) 1 -1) dn)))
>
>
> Thanks,
> -- 
> Narendra Joshi