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Year's Fastest Sunsets Happen Around Equinoxes.
The September equinox will arrive tomorrow (September 22, 2021) at 19:21 UTC. And here’s a little-known equinox phenomenon: the sun sets faster around the time of an equinox. The fastest sunsets (and sunrises) occur at or near the equinoxes. And the slowest sunsets (and sunrises) occur at or near the solstices. It’s true whether you live in the Northern or Southern Hemisphere.
And, by the way, when we say sunset here, we’re talking about the actual number of minutes it takes for the body of the sun to sink below the western horizon.
https://earthsky.org/astronomy-essentials/years-fastest-sunsets-around-equinoxes/?
