Most likely because the symbols are seen in many inscriptions and carvings making it more obvious that they are dates/times. Also, there are those who follow the calendar as it was passed down from generation to the next.
The Maya used a complex calendar system, composed of a 260-day ritual calendar known as the Tzolk'in and a 365-day solar calendar known as the Haab'. By combining these two calendars, the Maya were able to calculate the length of the solar year to be approximately 365.2420 days.
no
Standard solar time
MAYA
Mean solar time
Same as on Jupiter. About 12 Earth years.
It's the average length of the "apparent solar day" throughout the year, 24 hours exactly for planet Earth.
Mean solar time
The time it takes to go around its solar systems sun.
what year was the Maya build in Mexico
The average length of the day is usually just called "day".
Sunspot cycles are 10 to 12 years in length.
All the planets in the solar system move at different speeds around the sun, and at different distances. The term "year" as in one orbit around the sun has nothing to do with a "year" as a unit of measurement on Earth.