The Fibonacci Time Extension tool is created by locating a significant high (low) and finding a significant retracement or extension low (high). The major Fibonacci ratios are then calculated and plotted by charting software.
An example of a Fibonacci Time Extension is shown below in the chart below of the S&P 500 exchange-traded fund (SPY):

Because there are many traders out there who do believe that the Fibonacci ratios apply to the financial markets, that means there are real supply and demand forces working on the markets at these important Fibonacci junctures. This is important because, after all, supply and demand is the concept that moves the markets.
| 1. Fibonacci Basics & Fibonacci Retracements | 3. Fibonacci Fans |
| 2. Fibonacci Arcs | 4. Fibonacci Time Extensions |