> For the complete documentation index, see [llms.txt](https://wiki.realisticseasons.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wiki.realisticseasons.com/calendar.md).

# Calendar

- [Calendar system](https://wiki.realisticseasons.com/calendar/calendar-system.md)
- [Synchronizing](https://wiki.realisticseasons.com/calendar/synchronizing.md)
- [Day and night length](https://wiki.realisticseasons.com/calendar/day-and-night-length.md)