Calendars help people track the passage of time by organizing days into weeks, months, and other periods. The races and cultures of Eamon use many different calendars, but in Addar the two most common are:

The Ovidoric calendar, which arranges the 366 days of the year into 61 weeks of six days each.

The older Imperial calendar, which uses seven-day weeks, 26-day months, and occasional intercalary days.

See also: Dating system