A timer trigger enables you to define at what time and with what frequency within a specified period you want the service to run. The screenshot below (with UI opened in Firefox) illustrates how to define the settings of a timer trigger.
The trigger is defined with the help of the following parameters:
•Name: The trigger's name is a string that serves as the trigger's identifier.
•Run: Defines whether the trigger should fire once or periodically every N number of days.
•Repeat: Defines the frequency of the service: every x minutes within a period you specify.
•Start, Expires: Defines, respectively, the start and end time of the period within which the service will run.
•Time zone: Specifies the timezone of the values in the Start and Expires fields.
•Enabled: This check box allows you to enable/disable the trigger.