Two electric rates needed Or is there a work around

Hi i pay 22p per kwh between 5am & 12 midnight, then 6p per kwh between 12 & 5am. Is there a way to monitor this? Even with 2 CT clamps that are timed to take readings only at these hours. IE: could i put a timer that breaks the CT clamp wires at certain times??

I just replied to a very similar usecase with a possible solution, but it’s in a German language topic:
(But having a foreign language translated shouldn’t be an issue nowadays)

Follow the blue links on top to view the complete posts with (English) screenshots

and

Thanks, Peter, there’s something new to get my head around.

Only an idea.