This is a good visualization and gives a qualitative awareness I lacked before. I didn't realize how many timezones in the world are severely "off center" and counter to my own experience. I've lived my whole life in areas that are "barely green" to "slightly pink" in this map. Oddly, most of my travel destinations have also had similar solar alignment, whether in North America, Europe, or Asia. The biggest deviation I have experienced is that of South Korea, which I didn't really notice as unusual during a short visit with jet lag.

It is striking how many timezones are all red instead of being split red and green. In my childhood, people always talked about how different the evening/night culture was in Spain with meals at late hours. This map tells me the difference is less significant than I imagined as far as solar life, and more due to the time standard.

While this topic is beat to death already, I remain torn. On the one hand, centering on solar time is the only logical criteria I can see for adjusting and revising standards. To revise it even further away seems illogical to me. But, the map clearly many cultures already have gone that route. I can imagine many of these deviations came from some legacy desire to synchronize with an adjacent center of power or commerce. I can also appreciate that if we set it far enough out of whack, it illuminates how any standard is inherently arbitrary.