Who is cross-checking google earth or any of those internet calculators with what the sun does in reality?
I am checking the sun & moon rise and set times regularly from my location near Brisbane Australia,
and was doing so long before I knew about this society. Both algorithms I use have been ported to three computing platforms,
and have been correct for my location since 2007.
Those internet calculators are there for a reason. Heres one: If you're climbing a mountain, you want to know the
Sun set time and moon times, and moon phase for the relevant location.