I see a fair number of pubs advertising the fact that they are "Open All Hours". However, I've often seen them with their doors closed well after noon. Since 24-hour drinking is now possible, the claim is questionable anyway. But, if it means anything, it should mean that they are open all the hours that were permitted before the liberalisation of licensing laws, which in this area should mean they throw open their doors promptly at 11 am Monday to Saturday. A pub that does not open until noon is not "Open All Hours". "Open All Afternoon" would be a more accurate slogan.