why cant I set my clock

Hello...I am playing this game just fine when I got stuck on the clock!! Why cant I set my clock...I believe it's suppose to be set at 10:30pm...

Guide Chapter 2: Discovering the Graveyard

*Go through the window to the tree house.
*Zoom into the album (S).
*Pick up the BUTTERFLY (T).
*Flip through the pages and pick up the drawing piece (U).
*Cut the rope on the ladder (V) with the KNIFE.

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