This is a dictionary definition. It should not be an encyclopedia article. It can be defined along with related units of measure in the speed of light article. -Eric ^talk 12:04, 21 June 2008 (UTC)[reply]__DTELLIPSISBUTTON__{"threadItem":{"timestamp":"2008-06-21T12:04:00.000Z","author":"Eric","type":"comment","level":1,"id":"c-Eric-2008-06-21T12:04:00.000Z-Dictionary_entry","replies":[]}}-->

The light-year article is the appropriate place to describe the concept of expressing distance in terms of how far light travels in a given time interval, that term being the most widely known one for this approach to distance measurement. Substituting 'year' with other units of time measurement and making a stub on each one is unnecessary clutter. A simple list at the end of the light-year article will suffice. -Eric ^talk 12:32, 25 June 2008 (UTC)[reply]__DTELLIPSISBUTTON__{"threadItem":{"timestamp":"2008-06-25T12:32:00.000Z","author":"Eric","type":"comment","level":1,"id":"c-Eric-2008-06-25T12:32:00.000Z-Dictionary_entry","replies":[]}}-->