If the setting is enabled and a member clocks out on their app, it will set their clock out time to when they left the last project geofence. For example, if a member left the last project at 5:00pm, but forgot to clock out until 7:00pm, the time card will be trimmed to reflect 5:00pm as the clock out time.

NOTE: You can still see the true clock out time in the Logs of the time card.

See more about the time clock rules here: Time Clock Rules & Groups