Calendars

Calendars are systems for organizing and keeping track of time. They divide the year into days, weeks, and months, helping us schedule events, holidays, and activities. The most common calendar is the Gregorian calendar, which has 12 months and 365 days in a standard year, with an extra day added in a leap year. Different cultures may use various calendars, such as the lunar calendar or the Islamic calendar, which have different structures and months. Calendars are essential for daily planning, historical record-keeping, and understanding seasonal changes.