Chronometer

A chronometer, chrono, or clock, was an electronic device for the keeping of time.

When trying to erase all of evidence of her use of a snooper program, Merei Spanjaf was foiled by a computer terminal that had a bad chronometer. Spanjaf also kept a personal chronometer of her own on her person. She once slept so soundly that when she checked it after waking up, she found it was two hours after dawn.

The lack of a clock on the wall of Leia Organa's cell on the Death Star, along with the austere surroundings and lack of company, left her unmoored in time.

Mechanical clocks with 12 hours were used in the galaxy in ancient times.

Text and facts from the “Chronometer” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.