Calendarrelated

Calendarrelated is a general descriptor used to refer to topics that pertain to calendars and timekeeping, including the organization of days, weeks, months, and years. In digital content, calendarrelated is commonly used as a tagging or categorization term to group articles, tools, software libraries, and historical calendars.

Key concepts include determinations of dates, day names, ordinal dates, leap years, and the relationship between civil calendars and astronomical cycles. Calendar systems vary: solar calendars (Gregorian), lunar calendars (Islamic), lunisolar calendars (Hebrew, Chinese), and regional or historical variants.

Practical applications include scheduling, event planning, holiday observances, fiscal calendars, and software features such as recurring events and date arithmetic. Standards and formats used to exchange calendar data include the iCalendar format (ICS) and ISO 8601 date and time representations.

In summary, calendarrelated encompasses the study, tagging, and practical use of calendars across cultural, historical, and technological contexts.