The Calendar of Zul

From publisher blurb:

What do the stars hold for your adventuring party? The next entry in our “Free City of Vadashar” line expands the World of Zul into the very cosmos themselves. The Calendar and Zodiac of Zul features the almanac and astrological charts that have been employed since ancient times by the civilized peoples of the Megacontinent of Zul. Included is a list of month names (and their more familiar equivalents), as well as constellations, Zodiac signs, and a complete list of the major holidays and festivals celebrated since the fall of the Giant Kings.