I&#x27;m not sure any of us are.  In the US, summer is colloquially from the last Monday of May to the first Monday of September (Memorial-Labor Days).  Many seasonal businesses use this definition for opening or extending hours.  And it&#x27;s within a week or two of what most schools do, too.<p>Calling the astronomical seasons illogical is quite a stretch.  Sure, it&#x27;s ~18 days off from the average weather patterns, but those can vary substantially from year to year, too.  But everyone knows that.  And folks are doing just fine.