cronExpression

The cron expression for the event window, for example, * 0-4,20-23 * * 1,5. If you specify a cron expression, you can't specify a time range.

Constraints:

• Only hour and day of the week values are supported.

• For day of the week values, you can specify either integers 0 through 6, or alternative single values SUN through SAT.

• The minute, month, and year must be specified by *.

• The hour value must be one or a multiple range, for example, 0-4 or 0-4,20-23.

• Each hour range must be >= 2 hours, for example, 0-2 or 20-23.

• The event window must be >= 4 hours. The combined total time ranges in the event window must be >= 4 hours.

For more information about cron expressions, see cron on the Wikipedia website.