Tzolkin

Tzolkin is the 260-day sacred calendar of the Maya. It is composed of a cycle of twenty days in cycle of thirteen. It is one of the component parts of the Maya calendar.

The twenty day names used in Maya calendrics are (in Yucatec Maya language),

Imix, Ik, Akbal, Kan, Chicchan, Cimi, Manik, Lama, Muluc, Oc, Chuen, Eb, Ben, Ix, Men, Cib, Cabab, Eznab, Cauac, Ahau.

1 Imix is the first day of the Tzolkin.
2 Ik
3 Akbal
4 Kan
5 Chicchan
6 Cimi
7 Manik
8 Lama
9 Muluc
10 Oc
11 Chuen
12 Eb
13 Ben is the 13th day of the Tzolkin
1 Ix is the 14th day of the Tzolkin
2 Men
3 Cib
4 Cabab
5 Eznab
6 Cauac
7 Ahau
8 Imix
9 Ik
10 Akbal
11 Kan

...

9 Cib
10 Cabab
11 Eznab
12 Cauac
13 Ahau is the 260th day of the Tzolkin.

Tzolkin is part of Maya Long Count Calendar.