I’ve tested the rules schedule feature in V6.3 and it works perfectly so thank you Peplink!
Here’s an example of the rules schedule feature in the upcoming V6.3 Peplink firmware. The first thing I did was create a schedule and named it “Work Schedule”. You can either select the 30 minute cells individually or click and drag to select them continuously. This rule will apply from 8am-12pm, off until 1pm then on again from 1pm-5pm then off. You can create as many schedules as you want and apply them to any rules you setup. Definitely possible to disable all access to the staff group with this schedule and a rule:
This is my Facebook rule and all you need to do now is select the schedule in the box on the “Enable” line. It defaults to “Always On” so just hit the down arrow to see and select a schedule: