Most stones pass in the forst 48 hours. The chance of it passing after a week is around 50%. The time to pass a stone is really the same for men and women. Most stones pass in the forst 48 hours. The chance of it passing after a week is around 50%. In brief: Normally 2 days. The time to pass a stone is really the same for men and women.  The time to pass a stone is really the same for men and women. 