Voynich is encrypted ENOCH

[Radim Dobeš]

The Enoch calendar is an ancient, divinely revealed solar calendar detailed in the pseudepigraphal Book of Enoch and the Book of Jubilees. [...] Core Characteristics:364-Day Fixed Solar Year: It consists of exactly 364 days, which is divisible by 7. This means the year has exactly 52 weeks, and every date consistently falls on the exact same day of the week, every single year. [...]  each quarter Month 1: 30 days; Month 2: 30 days; Month 3: 30+1 days (This includes the intercalary day) [...]

That is close to what we see in the VMS Zodiac -- but not quite. 

One may argue whether the Pisces page has 29, 30, or 31 "things" (depending on whether one counts nymphs, labels, or stars, respectively).  But all the other surviving diagrams have 30 "things" (or 15, in each half of Aries and Taurus).  

So, in the VMS calendar, either the intercalary days are all clustered in the missing pages, or the "things" are not days but 1/360 of the whole yearly cycle -- like 1 Babylonian degree of arc on the Ecliptic, or ~365.25/360 = ~1.0146 days = ~24 hours and 20 minutes. 

All the best, --stolfi

I'm hesitating now how to respond at this point. It seems that no one on this forum knows much about this area or is responding. I've only been learning this since January. But let's stick to the Book of Enoch.

Guardians of the Gates (Solstices and Equinoxes)In the text, these days are not viewed as "extra time" to be hidden away. 
They represent the exact moments the Sun enters specific heavenly gates, marking:
The Spring Equinox
The Summer Solstice
The Autumn Equinox
The Winter Solstice
The Book of Enoch states that these 4 days are led by powerful angels (leaders of a thousand) named Melki'el, Helemmelek, Mele'eyal, and Narel. 
These angels literally "open the gate" for the new season. Therefore, each day must physically stand at the boundary of its respective season to introduce it.

We also need to consider 18 parts of a day (not 24)
Because a full day is 24 hours long, each "part" in the Book of Enoch equals exactly 80 minutes

This text and system are constantly being researched and new connections are constantly emerging. But the basic basis for study can be the book:

Otto Neugebauer "The 'Astronomical' Chapters of the Ethiopic Book of Enoch (72 to 82)" is a foundational monograph published in 1981 by the renowned Austrian-American mathematician and historian of science, Otto E. Neugebauer