Semantic or Syntax

I'm writing this post in the late-morning. Or could this be considered early-afternoon? I wouldn't because to me, afternoon is just that...after 12 PM. But I know people who don't subscribe to that. And what exactly is mid-afternoon? Would that be noon or sometime around 3 PM? I consider early-evening to be around 6 or 7 PM. Others may not so all this could go out the window. Time is just so relative.