While it can easily be disregarded as old folk superstition, Rokuyou is an important part of planning Japanese events and ceremony that crops up whenever wedding or funeral dates must be set. At least, it will if grandma has anything to do with it!
At the end of the Edo period, a system of predicting a day's fortune began to become popular. This cycle of six days can still be found printed in some calendars, and even has an impact on some Japanese businesses. The six days are as follows:
