How do you change the time of day on this machine?
Day light savings time, clocks spring ahead one hour.
Turn the left hand knob to "clock", hold hour button down until display starts to flash, release button briefly and press hour button once to increase hour by one. If you need to subtract one hour, keep button pressed until the hours go all the way around and then release button at correct hour. Make sure you stop at the correct AM or PM hour.