You can adjust the regular hours for a shift by changing the start and finish times. To make a change, click on  an assigned shift and adjust the start and finish times as required.

Any shift that has had its regular start or finish times changed, will display the shift length after the staff member's name to highlight it's been modified.

Part time shifts will reset their start time if they are dragged to a new shift on the roster. See Drag and Drop for more information.