Time is important because u cannot square a chart without some sort of time reference. Time will give confidence to make ur trade, but as Gann said, u must wait for a definite indication of a change in trend. In other words, u trade with a swing chart, the angles also help.
Shall I have your a little explaination about this chart. For example, why is the center of the round there? How to confirm the radius? Are the angles 30 degree, 45 degree and 60 degree? What can they tell companying the other indicators such as the circles, square?