The phone rang. A message for the Sage. There are some people moving into the area and they and the Sage would like to meet, and this chap is acting as the go-between. Last evening, he said that they would be visiting today and he thought that teatime would be a good time to call. However, he was phoning to alter the arrangements.
"They're not coming up until tomorrow. So will you tell him to call tomorrow and not today?"
I agreed, repeating the message. "You see," he explained carefully, "I said 'tomorrow', but I said that yesterday, so tomorrow is now today. But they aren't going to be here today, which was tomorrow yesterday. They will be here tomorrow."
"Right," I said. "Not Monday, but Tuesday. About teatime."
I didn't discuss what time he considers teatime. Anything from four until about half past six, depending on whom you ask.