Opening times

Still haven't figured this out. Some stores are open in the morning (like food stores and markets) while other stores are open in the afternoon (like more specialized shops like the magic shop or the healthfood store). Big stores---like the hypermarchés---are not open on Sundays (or if they are, only in the morning) while smaller shops may or may not be. Many small shops are closed on Mondays. Some places are only open at lunchtime (like restaurants) and others are closed at lunchtimes. Some are “non-stop” or open all day, but not open every day. Others open only in the evening. Some places are open more on Wednesdays when the schools are out, others are not open on Wednesdays, etc.

On every storefront there is practically a whole paragraph to decipher. Not easy to grasp (click to enlarge):

So I am trying to figure out if there is ONE BEST TIME to run errands. I'll have a plan for a circuit I need to get done (post office, bead store, shoe store, grocery store, butcher, healthfood store) and I’ll either hurry to go out early or wait to go out later, but half the stores will be closed and open at the other half of the day. Do people go out twice? How does a working person do it? I don't get the sense that other people find this frustrating, though, it just seems to be a fact of life. I’ll have to ask.

When traveling, we’ve learned, the thing to do at noon is to find a restaurant and sit down for 2 hours. Somehow, though, when we're on vacation or out for a day of exploring, I always feel like we are just getting started about noon and not ready to sit for two hours when there is so much still out there to see. And how can we start out earlier in the day if we are up late for dinner? There is an internal rhythm here that I am not getting.

I'm sure there is a logic to it (well, not exactly sure about the "logic" part, but it doesn’t seem to be a hassle for others), so I need someone to just spell it out for me. I have been unable to get the feel for it.