Calendars are a system of organizing days for social, religious, commercial, or administrative purposes. The term “calendar” comes from the Latin word “calends”, which referred to the first day of the month in the Roman calendar. Calendars can be based on astronomical events, such as the Earth’s orbit around the sun, or on religious or cultural traditions.
The calendar for December 2024 and January 2025 is a standard Gregorian calendar. The Gregorian calendar is the most widely used calendar in the world today. It was introduced in 1582 by Pope Gregory XIII and is based on the Earth’s orbit around the sun. The Gregorian calendar has 12 months, with 28 days in February in a common year and 29 days in February in a leap year. Leap years occur every four years, except for years that are divisible by 100 but not by 400.
