Standard month

A standard month, also referred to simply as a month, was a period of time that spanned several standard weeks. On Coruscant, a year was made up of twelve months. Certain events were often held at set times of a month. On Cynda, the moon of the Inner Rim planet Gorse, blood cultists would appear once a month, during a full moon, for blood sacrifices. The Q'anah was held on the planet Asmeru once per year on the 234th day of the 16th month on the Asmeru calendar.

Behind the scenes
In Pablo Hidalgo's internal chronology, standard months are named "January" through "December", and standard years counted so that 0 BBY begins in "May 1977".