Guys I need help. What were some similarities between the Mayan calendar and the calendar we use today?

The Vague Year or haab of 365 days is similar to our modern calendar, consisting of 18 months of 20 days each, with an unlucky five-day period at the end. The secular calendar of 365 days had to do primarily with the seasons and agriculture, and was based on the solar cycle.

They used different languages