This will spawn after you activate the Pack A Punch.
This Triangle spawn 4 types (triangle, down triangle, triangle with line and down triangle with line) and its has 6 locations to look for. Clock is always in the same spot but the time is always spawn randomly each game play.
First location: Mail Room, Triangle can be found behind the staircase lower level and the clock will be located on past way to cargo hold close to a pneumatic tube. Second Location: Bridge, Go past helm (steering wheel) straight to the office table and your symbol is under it. The clock is just in front of helm (steering wheel). Third Location: Upper Grand Staircase, Go to the left of the side, look on the top of the door (this door lead you to boat deck) little bit right and you will see your symbol. Clock can be found in the middle of the staircase. Fourth Location: 1st Class Lounge. Symbol can be found next to a mystery box just look on your left and the clock is in the top of the fire place. Fifth Location: Galley. On dining hall go to the right hallway straight to galley and on the middle table look behind it. When you get up, look on your left and clock is in the wall. Sixth Location: 3rd Class Berths. On the staircase lower level where you can get the parts of the shield, just look behind the stairs and clock will be next to where you can get the part of the shield.
Note: This can be done in any order.