Originally Posted by
capt_velo
Fair enough. The tables I was using had a period of about 10 days where the sunset and sunrise didn't change within a resolution of one minute. So I took the midpoint day as close enough for government work.. And I didn't compare for other places, other than to notice that both hemispheres experience it near the December solstice regardless of whether it's winter or summer locally. At the June solstice, it's bang on.