Hi michel3105!
Thanks for your question! Yeah, this could be clearer.
The players should always be able to see the number that the clock is at: 1200, 1500, 1800, 2100, etc.
The players should not be able to see what happens at each level: so if at 2100 on the Action Clock, the facility goes into lockdown, they shouldn't know that until it happens.
Does that clarify that?