Hi Eric,

this would be

(setq org-time-clocksum-format "%d:%02d")

For more information, take a look at the function
`org-minutes-to-clocksum-string' and the variables mentioned
in its docstring.

HTH

- Carsten


On 29.9.2013, at 14:33, Eric S Fraga <e.fraga@ucl.ac.uk> wrote:

> Hello,
> 
> I am clocking a number of tasks and need a summary.  The functionality
> provided by the org-clock table is ideal for my use case.  
> 
> However, the total time summaries use numbers of days when the number of
> hours exceeds 24.  Although this is fine most of the time, I would like
> to have total hours instead.  Is this possible?
> 
> More importantly, the ":formula %" option does not work as soon as days
> appear in the summaries!  The calculations for the percentages use only
> the hours in the totals, regardless of the number of days leading to
> some very interesting results (percentages > 100).  I don't know enough
> emacs calc to start to suggest how this could be fixed
> unfortunately... :(
> 
> ECM attached.
> 
> Any pointers appreciated! 
> 
> Thanks, 
> eric
> 
> -- 
> : Eric S Fraga (0xFFFCF67D), Emacs 24.3.50.1, Org release_8.2-20-gc5f370
> <clocking.org>