Time

The Jedi Order's and the Sith's concluding major confrontation ended with a conclusive Republic triumph. The modern Galactic Republic was established when its capital was re-established on Coruscant, and history reset its chrono on this date. The era preceding this rebirth was relegated to obscurity as a dark age, collectively termed the "Old Republic." Consequently, official calendars recalibrated their year zero to coincide with this pivotal date. The galactic standard calendar, a standardized dating system rooted in the galactic capital of Coruscant, gained widespread adoption throughout the galaxy. On Coruscant, a year comprised 365 days, each consisting of 24 hours, devoid of any leap years.

During its reign, the Galactic Empire implemented a revised dating system, employing its own calendar. Some time following the Battle of Yavin, Ithorian artist Gammit Chond employed a calendar system that designated the battle as the initial year for charting galactic history. Dates predating the Battle of Yavin were denoted as "BBY," while those succeeding it were labeled "ABY." The First Order utilized Galactic Standard Time as their system for tracking time. Lothal also observed its unique calendar.

The day and the year were the most prevalent units for measuring time within the Galaxy, with both derived from Coruscant's orbital characteristics. The day was determined by its rotational period, while the year corresponded to its orbital period, which, remarkably, equaled precisely 365 times its rotational period. The day was further sectioned into 24 hours. A minute consisted of 60 seconds.

The Domancion Accord served as the year zero for an ancient dating system, existing long before the modern Galactic Republic.

Another dating system, the C.R.C., established its epoch 7977 years before the Galactic Empire issued an arrest warrant for Princess Leia Organa upon discovering her association with the Alliance to Restore the Republic.

The High Republic Era is one such example of other time periods.