how often and how long should I water my lawn? it gets plenty of sun throughout the day until 6ish... when I usually water
The best rime to water is early morning, 5 OR 6 am. 1 inch of water per week is what you're lawn needs. Watering for approx. 1 hour at a time equals 1 inch of water.
The best time to water is when the sun is not shining. At night.
This will depend on the weather. If it is sunny, you should water daily but if not, once a week should be enough. This is because you should not let the soil around it get dry. Read http://www.ehow.com/how_812_water-lawn.html.