The Uinal is a 20-day sequence starting with Imix Ton 1 and ending with Ahau Ton 13
There are 13 Unial in the Tzolk’in Calendar.
Each single is under the influence of the 13 Tones
The first 6 Uinal represents the growth period.
Uinal 7 Period of Rest / Reflection
Uinals from 8 to 13 show the transformation period.