I hope you are not serious. If the shadow (hand) is on two, it's two o'clock. If it's on three, it's three o'clock. If it's exactly between those two ticks it's half past two. There isn't even anything to learn (at least when they were invented). That's exactly how the hour hand on a clock works.
(Note: Today it would be a bit more complicated if you want wall-clock-time because the sun dial always tells local solar time and if you want the time in your time zone you would have to adjust for DST and use the equation of time for some smaller corrections)
Current LLMs are definitely not intelligent, but predicting the future is a big part (if not the most important part) of intelligence.
Your comment is a bit like saying that humans can't be intelligent, because the biochemistry in our brains is just laws of physics in motion, and the laws of physics are not intelligent.
Intelligent is an emergent property. You can definitely be intelligent even if every component is not.
But with LLMs we found a new weird "dimension" that something can be very knowledgeable without being intelligent. Even current LLMs have more general knowledge than all humans but they lack actual intelligence.