Stellarium will absolutely answer your question. Just simply set the date
to one of the two equinoxes. On those dates the Sun is perpendicular to
Earth's axis. Let the time run for plus/minus 12 hours while observing from
different latitudes and you will have your answer directly.
John
- - - -
John E. Sohl, Ph.D.
WSU Brady Presidential Distinguished Professor
Department of Physics and Astronomy
Department of Environmental Science
Weber State University
1415 Edvalson St., Dept 2508
Ogden, UT 84408-2508
Office: TY 326
Office phone: (801) 626-7907
cell: (801) 476-0589 (Text me, I don't answer the phone if you are not in
my contacts.)