The Maya year has a basic unit called Kin, a word that means day, Sun, etc. The Tzolkin calendar has a cycle of 20 day names conbined with a cycle of 13 day numbers. Each of these 20 names has a glyph to represent it, these are:2).- The Uinal. The Maya year is divided in 19 months, they are designated Uinal, each has a name and a corresponding glyph.Of these months, the first eighteen have twenty days and the last one, called Uayeb, has only five.The days within a month are numbered from 0 to 19 with the exception of Uayeb which is numbered from 0 to 4.he Maya year is divided in 19 months, they are designated Uinal, each has a name and a corresponding glyph. Of these months, the first eighteen have twenty days and the last one, called Uayeb, has only five. The days within a month are numbered from 0 to 19 with the exception of Uayeb which is numbered from 0 to 4.