Find a clock with a symbol beside it. Select that exact triangle, then record its two hands. The four symbols belong to this clock puzzle; the Catalyst outlets have their own helper.
Up triangle · record the clock
Where are the six clocks and their symbols?
Clock by Cargo Hold doorway; symbol beneath the stairs.
Mail Rooms: clockMail Rooms: symbol position (your symbol varies)
Choose a symbol and record both clock hands to reveal its controls.