Tip - How to Change the Time on a Grandfather Clock | eHow

Changing the time on a grandfather clock is a two-fold process. You change the indication of the time by moving the hands on the face; you change the timekeeping by adjusting the pendulum. The pendulum regulates the clock's time. If the clock runs slow or fast, it's usually not a problem with the movement (the innards of the clock). Simply use the...