A system and method for creating a graphical program operable to execute a timed loop. A loop may be displayed in the graphical program and configured with timing information in response to user input. The timing information may include an execution period which specifies a desired period at which the loop should execute during execution of the graphical program. The timing information may also include information such as a timing source, offset, and priority. During execution of the graphical program, the execution period of the loop may control the rate at which the loop executes.