This calendar, widely used in the Old Empires, is known by various names today but is most often called the Imperial calendar, or sometimes just the "old calendar". It divides the 366 days of Eamon's year into two blocks of seven months (the Young Seven and the Old Seven), each consisting of 26 days, with a single intercalary day placed between each block that's part of no month (the Day of Suns and the Day of Moons):
26 + 26 + 26 + 26 + 26 + 26 + 26
+ 1
+ 26 + 26 + 26 + 26 + 26 + 26 + 26
+ 1
= 366
Leap-days, occurring only every 239 years, are treated as a third intercalary day (the Day of Souls) added to the end of the year.
Though replaced by the newer Ovidoric calendar in much of central Addar, versions of the Imperial calendar (that keep the 26×7×2+2 arrangement) are still in use in the Northern Reaches, in eastern lands like Knieriem, and in some other corners of the continent, though with varying systems of year-numbering.
Days of the week
The seven days of the week are named Ruzol, Dom, Som, Cheram, Panjam, Shesham, and Naftam. The names originated in Kurabysh, and variations of them persist in cultures that still use the Imperial calendar.
