Hands of Time is the puzzle game from Final Fantasy XIII-2 turned into an iPhone/iPad app. It is a stand-alone game with 100 levels but also features a solver in case you want the solution to one of Final Fantasy 13-2 hard to pass puzzles.
In each level you have to activate all the glyphs to complete the level. Each glyph is a symbol between 1 and 6. The number means how many glyphs the hands of the clock will move to left and right. So 1 moves the clocks hands 1 unit left, and 1 unit right, 2 moves it 2 to the left, and 2 to the right. After choosing the initial glyph, you are only left with the options the clock points to. Usually you have 2 other options but in the case where a glyph moves the clock 180 degrees, you only have one option to choose.
The arcade mode features 100 levels with 4 to 13 puzzle glyphs on the board making you tick for a very long time.