UCSF employees use Huntington Business Systems (HBS) to submit hours and request leave. UCSF managers also use HBS to fully review and approve employee timesheets and leave requests. This guide provides an overview of steps to approve or deny timesheets and leave requests. For complete details on acting as an HBS manager, including delegation of approval authority, editing timesheets, and reviewing employee leave balances, refer to the HBS for Managers job aid