kalendrikonventsioonide
Kalendrikonventsioonid, meaning calendar conventions, refer to the established rules and agreements that govern how time is measured and organized in a calendar system. These conventions dictate fundamental aspects such as the length of a year, the number of days in a month, the naming of months and days, and the starting point of the calendar. Different cultures and historical periods have employed various kalendrikonventsioonid, leading to a diverse array of calendar systems throughout history.
The most widely used calendar today is the Gregorian calendar. Its kalendrikonventsioonid include a solar year
Historically, many calendars were lunisolar, attempting to reconcile lunar cycles with the solar year. These often