How to Schedule a time based allow or block.
1.1 Log into the firewall.
1.2 Go to Aliases>Schedules
1.3 Click the + to create a new schedule.
1.4 Configure the Schedule to your specific needs:
2.1 Once you have configure the Schedule, go to Web Security>Web Profiles
2.2 Click on the + to create a new Profile.
2.3 Configure the Profile for `Allow by Category by Time`
2.4 Select the Schedule you have just created.
2.5 Configure the categories you wish to allow.
If you want to allow a certain domain or service like Windows Update, Configure categories as Default profile.
Under Always Allowed - Add the service or domain you wish to allow during that time frame.