About a week.
As long as it is not out of the water, lobsters can remain alive in cages on the ground. It takes about two days to get out of the water. It also depends on the variety, ranging from 5 to 7 days.
Lobsters are generally afraid of being blown away by the wind, they will die easily and only survive for a few days. The lobster's shell is thick and water is difficult to lose. The water that can be retained in the body is not easy to lose every time, so it can live on the shore for several days.