Sun Preferences according to a Specific Way-point

I am trying to make a shadow study for some building in Tanzania, Africa. I have an exact way point (latitude and altitude) which is not shown in the list at the Sun Angle Calculator window, so I put the numbers of the way point in the relevant rubrics. However, after I fill the way

point, it seems as if the small red dot that suppose to indicate the location of the way point on top of the earth illustration is arbitrary.
Since I need to have a realistic analysis of the sun shadows effects on the site, I would like to make sure whether in that case I will get a render which is calculated according to the way point I fill O R it is calculated according to the location of the red dot that is shown on the earth illustration (on the same window)?
I will appreciate your help

Looks like you have your signals crossed:

You’re right… My mistake.