Select one of the following options:
Happens every month - If you select this option, the timer fires every month. When you select this option, the Cron expression in the Schedule field shows the asterisk character (*) for this field.
Happens every [6] months -- Specify the interval of months that the timer will wait before firing again. The default value for this option is 6 months, so the timer would fire twice a year (every six months).
Happens from [JAN] to [DEC] -- Specify a range of months during which the timer will fire. The default value for this option (JAN to DEC) specifies that the timer will fire every month of the year.
Happens every [6] months, starting at [JAN] -- Specify the interval that the timer will wait before it fires again and the starting month for the interval. The default value for this option starts the timer in January, and then the timer occurs every six months.
Other expression -- This field allows you to use Cron format to type a time expression for Months. In addition, when you re-open this dialog box after making a selection, this field shows the Cron format for that selection.
When ready, click OK to save your selection and return to configuring the Schedule.