Graphing completion times across midnight

I'm trying to show trends in batch job completion times. The jobs typically complete anywhere from 22:00 to 7:00 the next morning. x axis is day, y axis is time. Ideally I'd like to show midnight in the middle of the graph. I realize it's funky because completion time crosses days but there must be a way

An interesting approach. As long as I select a time to subtract in the MOD function that pulls everything to one side or the other of Midnight it works. Thanks!