shed together to mark the movement of the sun, moon and Venus. Their ritual calendar, known as the Tzolkin, was composed of 260 days. It pairs the numbers from 1 through 13 with a sequence of the 20 day-names shown below. It works something like our days of the week pairing with the numbers of the month. Thus you might have 1-Imix (similar to Sunday the 1st) followed by 2-Ik (just as you would have Monday the 2nd). When you get to 13-Ben, the next day would start the numbers over again, thus 1-Ix, 2-Men etc. It will take 260 days before the cycle gets back to 1-Imix again (13 x 20).

THE 20 DAY CYCLE
The symbols shown below represent the 20 day-names and are identified with their Yucatec names, pronunciation and approximate translation. The name, meaning and symbol can vary in different Maya languages. Also, each day can be represented with more elaborate glyphs known as "Head Variants" - a formal writing system which can be loosely compared to our script alphabet versus our print alphabet.

IMIX
ee mesh
waterlily, world

 IK'
eek'
wind

AK'BAL
ok bol 
night-house
 

K'AN
k' on 
maize

CHIKCHAN
cheek chon
snake

 KIMI
kee me
death

MANIK'
ma neek'
 hand

LAMAT
la mot 
Venus

MULUK'
mul ok'
water

OK
ak 
dog

CHUEN
chew in
monkey

EB
eb
tooth

BEN
ben 
reed

IX
eesh 
jaguar

MEN
men 
eagle

KIB
keeb 
soul

KABAN
kah bon
earth 

ETZ'NAB
ehts' nob 
flint, knife

KAWAK
kah wok 
storm

AHAW
ah how 
Lord

The Tzolkin calendar was meshed with a 365-day solar cycle called the "Haab". The calendar consisted of 18 months with 20 days (numbered 0-19) and a short "month" of only 5 days that was called the Wayeb and was considered to be a dangerous time. It took 52 years for the Tzolkin and Haab calendars to move through a complete cycle.
These are the Mayan words for periods of time:
Day = Kin (keen)
Month of 20 days = Uinal (wee nal)
Year of 360 days = Tun (toon)
20 Tuns = K'atun (k' ah toon)
20 K'atuns = Baktun (bock toon)