Splitting activity duration by hour intervals

[Karlheinz]

Hi,

i hope someone can help me. I try something similar as already described here: Splitting activity duration by half an hour intervals

I too have a long list of activities and their start and end times. What I need is to split the duration of each activity into hourly intervals.
At "Normal" times this is not a problem, but when the times go past midnight. My table looks like this:

Any help is highly appreciated
Thanks a million.
Karl