Light day
One light day was the distance that light traveled in one Earth day, a distance of twenty-four light hours.

In 2265, the  was a few light days away from Delta Vega after it had cleared the galactic barrier. ()

Makus III was three light days from Murasaki 312. ()

In 2267, when Spock requested a leave on , the diversion would have caused a loss of 2.8 light days to the course of the Enterprise. ()

See also
 Light hour
 Light year

External link
 

Measurements