The Barren Kingdoms
The Wealdan calendar is lunisolar. It consists of 12 months of 28 days each, with an intercalated week placed at the end of the 1st and 9th months (the beginning and end of the growing season). This makes the typical Wealdan year 350 days,
Analogy to the modern Earth calendar
Wealdan’s year begins in spring, with the first month roughly corresponding to March/April — the Wealdan calendar pins its beginning on the vernal equinox, so the analogy isn’t perfect. The intercalated day falls between what we would call early November, about six weeks after the autumnal equinox..