Vahltain Calendar

This calendar is designed around the earth's relative rotation around the sun. There is a large stone sun-dial surrounded by 12 different ornately carved stones atop Mount Vahltus the shadow of which will move depending on the time of year. This is how Vahltain's keep track of time.
Chrono-scribes are in charge of keeping the people up to date with time. This is also the most commonly used calender in the world.