What date should be used to decide house value in this scenario?

Husband has moved out the house for 2 years, and didn;t pay any expenses towards the house, such as mortgage, property tax, maintenances, etc. I have already refied the house under my own name.
My question is what is the time line we should use when decide the house value? Should it be as to the court day or back to 2 years back when he stopped paying for house?

thanks a lot.