Hacker News Reader

Noon already does not correspond to the sun overhead. Timezones, and IIRC the time of year and inclination relative to the equator matter too.

However, irrespectively, it's basically never solar noon at noon if someone is using time zones rather than local solar time, which of course would be a custom timezone for that exact location.

View on HN

This article that I just came across does a nice job at explaining some of the nuances of solar noon https://www.timeanddate.com/astronomy/solar-noon.html .

The time of year does matter a bit, but the effect is smaller than the effect of timezones. Their equation of time article includes a nice graph of the variations in time of solar noon at Greenwich. https://www.timeanddate.com/astronomy/equation-of-time.html

> This article that I just came across does a nice job at explaining some of the nuances of solar noon https://www.timeanddate.com/astronomy/solar-noon.html .

And a related thing, the analemma - the sun's position at the same place on earth at solar noon over the course of a year doesn't resemble an arc, it's a figure-8: https://en.wikipedia.org/wiki/Analemma

Reply on news.ycombinator.com