Select one of the following options:
Happens every minute - If you select this option, the timer fires every minute. When you select this option, the Cron expression in the Schedule field shows the asterisk character (*) for this field.
Note: To fire a timer every minute, replace the zero
( 0 ) value in the hours field with an asterisk ( * ).
(A zero ( 0 ) always represents the 0th
second of the minute, or the 0th
minute of the hour.)
Happens every [30] minutes -- Specify the interval of minutes on which the timer should fire. The default is every 30 minutes. When you select this option and specify an interval, the Cron expression shows "0/n" in this field, where "n" is the number of minutes you specified for the interval. For example, if you specify every 45 minutes, this field shows "0/45" in the Cron expression.
Happens from minute [0] to [59] -- This option allows you to set the timer to fire over a period of minutes. Specify the minute at which you want the timer to start and the minute at which you want it to stop. For example, you might specify "from minute 30 to minute 50" for a timer that will fire for 20 minutes, starting at minute 30. This field in the Cron expression would show the range as "30-50".
Happens every [15] minutes, starting at minute [0] -- This default setting would cause the timer to fire four times in an hour, at minute 0, 15, 30, and 45. If you choose this option and keep the default settings, this field in the Cron expression would show "0/15" to indicate that the timer starts at minute 0 and fires every 15 minutes.
Other expression - This field allows you to use Cron format to type a time expression for minutes. 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.