[O] How to get rid of clocktable summary time in the form "2d 02:00"

[Buddy Butterfly]

Hi,

I would like to have the summary times in a clocktable be displayed
only in hours, like 48:00 instead of 2d. Or, is it possible to
define that 1d corresponds to 8:00 as a working day? So in the
above example I would rather like to see 5d (workingdays) corresponding
to 40:00. Clocktable counts 1d as 24h (which is right ;-) but not
in business.

Thanks a lot,
Matt