In 23 BBY, the Republic Measures & Standards Bureau debated whether to keep this calendar as one of the twenty or so official calendars of the Republic, with Keelen Ma commenting that the various researchers were getting tired of needing calendar converters on their pads.BBY/ABY is sometimes known as BSW4/ASW4, which means "before/after Star Wars: Episode IV".
Numerous epochs were used to determine calendar eras.
The most recent of these calendar eras used the Battle of Yavin as its epoch, or "year zero." BBY stands for Before the Battle of Yavin, and ABY stands for After the Battle of Yavin.
One particularly notable epoch is the Treaty of Coruscant of 3653 BBY.
The calendar eras before and after this event (referred to as "BTC" and "ATC", respectively) were popularized by the famous Jedi historian Gnost-Dural.
Although ethnic groups such as Tibet and Dai have their own calendars, in essence they resemble that of the Han people.
Islam reckons its own religion festivals according to the Islamic Calendar.In 20, Karen Traviss stated that she used the 10-month calendar when writing her Republic Commando novels.The Essential Atlas featured years of 12 months and months of 30 or 31 days, as did The New Essential Chronology. mentioned Sunday school, but gave no indication it was named for a day of the week.Material promoting The Thrawn Trilogy and other contemporary works dated those works by specifying how much time had passed since the Battle of Endor.This practice began to change after the release of The Truce at Bakura.It is also referred to as the Lunar, Yin, Xia or the old Chinese calendar.