Time won't let me go, part 2

One of the things that I love about my local language is the non-fixedness of its time. In French (or even English) if it was 11h00 and someone greeted you with “bon soir” (good afternoon) you would question their ability to read a clock. 

But in my local language, the greeting changes from the equivalent of good morning to good afternoon really when you feel like it. If you feel like you’ve been up and working and it feels like it’s afternoon, it’s perfectly acceptable to say good afternoon.

What I don’t love is that, recently, the change for me when it feels like good afternoon instead of good morning has been circa 10h30.