'P' is the key

[Loose_Spell_9313]

A few days ago I decided to dive into the Voynich, just as a curiosity. That was when I realized that by viewing the image on the left-hand side of p.67 as a proto-clock, you can (without stretching) arrive at the conclusion that there was a very short ~3.5 hour difference between sunrise and sunset. In my original post, I included calculations for 3-5 hours for safe margin- all of which leave you somewhere in the Arctic Circle. 

I don't understand how you are reading this proto-clock to get times for sunrise and sunset.

View each spike/point as an indication of an hourly mark; there are 12 in total like a clock. 
--Assuming it functions on 2 twelve-hour cycles (indicated by the Solar/Lunar imagery and the accompanying Mongolian (?) 4-point 'full stop' at the 12 o'clock position) 

Now between the 11 o'clock spike and the 2-3 o'clock spikes, the numbers of stars that appear above drops to 1.If we consider the stars as representations as two celestial bodies [I hate this term because it sounds mystical] in the sky, the sun and the moon, the inference then becomes that at between 11 o'clock and 2-2:30 o'clock, there is only one in the sky- while the rest of the hours feature both.