A time range is a date and time ranges during which the ACL rules are in effect. If you configure a time range when creating an ACL definition, the ACL takes effect only within the specified time range.
The two types of time ranges are:
The period includes:
To view the time ranges of a device:
In the ACL configuration page of a device, click the Time Ranges tab to open the Time range management page.
To delete configured time ranges:
In the ACL configuration page of a device, select one or more time ranges, and then click Delete.
You can also create time range deletion tasks to delete the time ranges configured on devices. For more information, see ACL Deployment > Delete Time Ranges on Devices.