Worse, it's 29.53, with a solar year being 365.25217 solar days, so 12.37 lunar cycles in a year, so you're off by 10.926 days a year.

In every society, some of the brightest and best minds got employed as astrologers, astronomers, and designers of calendars.

Yeah you're right, i was doing it via memory. Which makes this whole thing even more incorrect.

ITS NOT JUST A PHASE MUM!