Almost nowhere do you see the sun directly overhead at noon, even during Standard Time. The differences can be quite stark: https://24timezones.com/cms-static/images/uploads/solartimev...

BC (and PST) is actually quite reasonable in this regard, with Vancouver and LA being fairly close to "on the money." Contrast that with China and Russia, where clock time can be 2h+ off from solar time.

As a further note, this is one reason it's miserable to be in Boston/Maine during the winter if you're an SAD sufferer: sunset times of 4pm or sooner feel like "insult to injury."