A local day, also known as a local rotation, represented a unit of time. In terms of size, local days were larger than both divisions and fragments. The galactic standards for measuring time, including the standard hour, standard day, and standard year, were all based on the local time periods observed on the galactic capital world of Coruscant. One day on Coruscant consisted of 24 hours, and a year on Coruscant was 365 days in length.
On the ice planet Hoth, a year lasted 549 local days, with each local day being 23 standard hours long; this means a Hoth year was equivalent to 526 standard days. The volcanic planet Mustafar had an orbital period of 412 local rotations, with each rotation lasting 36 standard hours; this equated to a Mustafar year being 618 standard days long. Jakku had a year consisting of 315 local days. Each local day on Jakku was 26.8 standard hours, making a Jakku year 352 standard days in length.
On Cato Neimoidia, a year was made up of 278 local days, with each day being 25 standard hours long. On Dantooine, a year consisted of 378 local days, also with each day being 25 standard hours long. Both Neimoidia and Malastare had local years that were 221 local days in length, with each day being 29 standard hours. A year on Onderon comprised 405 local days, with each day lasting 28 standard hours. On Rodia, a year was 305 local days long, and each day was 29 standard hours.
During the Clone Wars' Battle of Christophsis, after repelling a Galactic Republic task force, the Confederacy of Independent Systems' tactical droid TI-99 estimated to his superior, Admiral Trench, that the natives' resistance on Christophsis would fall within half a local rotation. On the planet Vallt, a local day was composed of at least 18 divisions. Assis was kept under a restraining bolt for a period exceeding 27 local days on Vallt after being captured by Valltii soldiers.