168 of course refers to 24x7.
Travelled home from my week away today leaving the accommodation as I arrived, enfemme. Half way home stopped to change into drab so as to arrive home looking like the neighbours expect to see me. That was at approximately 11:00. I went femme at roughly 16:00 on the way there so a shortfall of 5 hours of actually making it a full week. It would be a nice feeling to actually do the full week but logistically difficult to do.
Had there not been the mini crisis with the MIL and her central heating that made me late setting off I'd have still been short but by probably 3 hours not 5. One year, who knows?
Close but no cigar I suppose.