Do you mean on the Sunday after the drive?
Its usually about 5 or 6pm, but without the second tea stop and the shorter daylight, its probably going to be nearer 5 than it is 6, but most people head off home after a coffee at the services.
Right so back to Chester at 5pm, then tonk it back to Brighton so probably looking at 9pm home... Do people make their own way back from Wales or is the idea to stay in convoy back to Chester?
We normally stay in convoy back to Chester, but if required you could always leave a little earlier if that helps After the evo triangle there is nothing stopping you making your own way back from there.