I would use a 3D plot:
time = 5 : 22; % Hours
Lat = randi([130, 140], size(time)); % Create Data
Lon = randi([120, 170], size(time)); % Create Data
figure
plot3(Lat, Lon, time)
grid on
xlabel('Latitude (°)')
ylabel('Longitude (°)')
zlabel('Time (hrs)')
If you must use a 2D plot, you would have to plot the latitude and longitude as separate lines:
figure
plot(time, Lat, time, Lon)
grid
legend('Latitude', 'Longitude', 'Location','best')
