Start Timing Analyzer Command (Processing Menu)
You can access this command by clicking
            . 
You must first compile a design to generate timing netlist
      information before running this command.
The Timing Analyzer performs timing analysis on your design, and generates a variety of timing reports that allow you to analyze the timing data.
Important: If you
            recompile the design, you must delete and then re-create the timing netlist before
            running the Timing Analyzer.