It contains traits which you may find helpful when dealing with calendar dates. This collection of traits constitutes a small LSL handbook.
Contributions are welcome for extending and enhancing it.
The trait RawDates just defines a tuple of abstract values and the appropriate order for calendar dates. It should be the most useful trait as it applies to many different calendars. The common Western calendar months are in the trait WesternMonth . In the Western calendar there are also variations. The basics are described in the trait JulianGregorian .