How do you set the timer on a gilmour impulse lawn sprinkler?

To set the timer on a Gilmour impulse lawn sprinkler, first ensure the sprinkler is securely connected to a water source. Then, locate the timer knob or dial, typically found on the base of the sprinkler. Set the desired watering duration by turning the knob to the appropriate time setting, and make sure to adjust the spray pattern if needed. Finally, turn on the water supply, and the sprinkler will operate according to the timer settings.