To solve this you need clue card R and be able to see the clocks in the lab. The tracing paper will also come in useful. If you do not have all these items yet, find another puzzle to solve.

Trace the lines on the clocks from clue card R and overlay them on the clocks in the image of the lab.

By tracing clue card R and overlaying it on the clocks in the lab, you will see the numbers "341." Type the answer in the box above to proceed.