On MacOS Mojave, 10.14 and SkySafari Pro 6.2.0. When I use the event dropdown on the clock to select rise or set for the sun or moon, the displayed image is off significantly.
For example, for sunrise today, 1/20/2019, computed is 7:49:30 am. But altitude is -0.38566 below horizon (see image). This is several minutes off.
Horizon is set to 0 elevation
lat long available by private email
elev 1587 meters
-6 hours gmt