The second cycle, the tzolk’in, is not divided into months but contains two parallel cycles, one of 13 and the other of 20. The cycle of 13 are identified by numbers, but the cycle of 20 has days with names.
And the following are the signs of the tzolk’in ritual cycle.
The keeping of the tzolk’in is still practiced among modern Maya, especially by Maya nations of highland Guatemala such as the Quiché or the Kakchiquel. The practioners are called “daykeepers”, are open to both genders, and they also serve functions such as diviners, midwives, and bonesetters.