From a business perspective, Lunar could be described as a composable library for manipulating dates, timestamps, and ranges using a proleptic Gregorian representation.
Time, Date, Datetime and Zoned_datetimecomparable elementsThe smallest unit of measurement in Lunar is the second, so this library is not intended for high-precision calculations (but rather serves as a foundation for describing applications centered around calendars so it also does not support negative years or leap seconds).