Not exactly. TIme quite literally flows backwards for him. It's odd how T.H. White describes it, so I'll post a quote:
Ah, yes. How did I know to set breakfast for two? That was why I showed you the lookingglass. Now ordinary people are born forwards in Time, if you understand what I mean, and nearly everything in the world goes forward too. This makes it quite easy for the ordinary people to live, just as it would be easy to join those five dots into a W if you were allowed to look at them forwards, instead of backwards and inside out. But I unfortunately was born at the wrong end of time, and I have to live backwards from in front, while surrounded by a lot of people living forwards from behind. Some people call it having second sight.
"Have I told you this before?" "No, we only met about half an hour ago." "So little time to pass?" said Merlyn, and a big tear ran down to the end of his nose. He wiped it off with his pyjamas and added anxiously, "Am I going to tell it you again?" "I do not know," said the Wart, "unless you have not finished telling me yet." "You see, one gets confused with Time, when it is like that. All one's tenses get muddled, for one thing. If you know what is going to happen to people, and not what has happened to them, it makes it difficult to prevent it happening, if you don't want it to have happened, if you see what I mean? Like drawing in a mirror."
