With a Network Firewall schedule, you can configure date ranges, days of the week, and time ranges for when a firewall rule is applied.
A schedule must be selected in a firewall rule or rule list, to apply to that firewall rule or rule list. The firewall rule or rule list must also be set to the Scheduled state.
When you configure a schedule for a rule list, the rules within the rule list can only be enabled when the rule list is enabled by the schedule. This means that even if the individual rules in a rule list have schedules, the rules are not enabled by their schedules unless the rule list is also enabled by the rule list schedule.