👉 Calendrical, or calendrical, is a concept that refers to the system of measuring time in which events occur chronologically. It was originally developed by astronomers to help them understand and predict astronomical phenomena such as eclipses and solar eclipses. The calendar was also used for accounting purposes, and it helped humans record dates and events. In modern times, calendrical systems are still used in various fields, including transportation planning, scheduling, and financial forecasting. They are often based on the lunar cycle