Fib Arcs is a tool representing a form of Fibonacci trading techniques .. the advantage of using Fib Arcs is that it gives you an edge regarding time because it act in both Price and Time axis ..

You as a trader can use these Fibonacci Time Zones intersecting with Fib Retracement Level for example to have a more  powerful entry .. and also you can use Fib arcs to be your Profit Targets ..