What is another word for solar calendar?
Pronunciation: [sˈə͡ʊlə kˈaləndə] (IPA) 
The term "solar calendar" refers to a type of calendar system that is based on the movements of the sun. Synonyms for this term include "tropical calendar," which refers to the fact that it is based on the tropical year (the time it takes for the sun to return to the same position in the sky), and "Julian calendar," which was introduced by Julius Caesar and followed the solar year. Other terms that can be used interchangeably with "solar calendar" include "lunar-solar calendar," which takes into account both the position of the sun and the moon to determine dates, and "civil calendar," which is adjusted to align with the seasons in order to facilitate agricultural planning and other activities.
