How do you program the timer on a Hayward pool pump?

Your filter does not need a time clock ~ it does not run on electricity. HIRE A QUALIFIED ELECTRICIAN to run the necessary conduit, wires etc for the time clock, motor and heater hook-ups. All equipment has to be bonded and grounded. Most municipal codes require too that you bring most or all pool related items up to current code. That includes retrofitting your main drain with the new requirements if yours is an older system. This is not only for your safety but for others that may be using your pool. After all you would not want a major injury or a death to occur on your property or having a law suit pending. k