Micron
From Battlestar Wiki, the free, open content Battlestar Galactica encyclopedia and episode guide
A micron is a Colonial measurement of time.
Analogous to an Earth split second (specifically, 0.6 seconds); plural form is "microns".
There are one hundred (100) microns, as opposed to sixty (60) Earth seconds, in one (1) centon.
See also: Units of Measure (TOS)