The prohibited time can be set for each registered domain.
Please access the following functions.
Scan Menu > Domain > Select Target Domain > Add Crawl/Scan Prohibition Schedule
Set the prohibition target and date/time, then click the "Add" button to set the prohibited time.
If scanning is stopped by the set prohibited time, scanning will resume after the prohibited time expires.
Also, if you want to scan only for a specified time, please refer to the following.