What time is noon? Specifically, in Sydney, at what time today will the sun be at its highest point in the sky? (That is, what time is solar noon?)
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My reference for 14 August says sunrise is 0635 and set is 1725 for a length of “day” of 10:50. If we take solar noon as half way between rise and set, half the day would happen 5:25 from rise, or exactly 12:00 which is quite a coincidence.
Since the sun takes 1440 minutes to “circle” the globe, or 4 minutes per degree, solar noon would be about 2 minutes later at Penrith.
Yes it was pretty much bang on at noon.
You can use https://www.esrl.noaa.gov/gmd/grad/solcalc/ to calculate noon for anywhere.