From Wiktionary, the free dictionary
From kilo- + hour.
kilohour (plural kilohours)
- One thousand hours. Symbol: khrs.
1996, Edgar K. Browning, Mark A. Zupan, Microeconomic Theory and Applications[1]:On the horizontal axis we measure kilo- hours of lighting; each kilohour is 1,000 hours, the service provided by each of the first type of bulbs.
