How long should a vegetable garden drip hose run each day?

From a garden blog:

“Problem number four – It’s tough to know how long you should run your soaker hose to get enough, but not too much, water into the ground. You want to apply one inch of water each week in the spring from you and the rain; two inches a week in the summer. Put an empty tuna fish can under each section of hose and time how long it takes to fill the can which is about one inch deep. That’s how long you run your hose each time.”

Straight from the mouth of our horticulturist here at the farm: “You should run it for two to three hours in the morning. If you notice the ground is too saturated, cut it back by half-hour.”