At the Forest Factories facility, locate the abandoned pump station.
Inside is a wall marked:
R O O T 7 15 15 20 THE FIRST STONE POINTS DOWN. THE SECOND STONE POINTS EAST. THE THIRD STONE POINTS TO THE CLOCK.
In-game, the clock has three hands. Record the three numbers they point to.
Then use the note in the pump station:
TURN BACK TURN EAST TURN EAST TURN BACK TURN NORTH TURN EAST
This is a route, not a password. Follow it to the hidden Time Stone chamber.
For your Roblox game: place the chamber at a memorable coordinate and put the six-character password on a physical terminal there.