How to get working Hours base on Boolean status

I know there is an Hours meter on the transaction group, but I need to know how I can show the working hours in SCADA page,
we have a washing system that washes something for 10 minutes or less this machine working 12 hours or 13 hours per day, we need to know how many hours operations put the machine in washing mode

we have Boolean and I added Boolean to the transaction group, the question is how I can show working Hours on SCADA pages? How we can use transaction group result