How do I set the clock on the Ninja CE251?
Plug in the power cord and press the Power button, then press either the H (hour) or M (minute) button until the display flashes. Use the H and M buttons to set the current time, and allow 5 seconds for the time to set once you reach the desired time. Note that if you unplug the brewer or experience a power loss, you will need to reset the clock the next time the brewer is powered on. (Page 7)
From the official Ninja Ce251 manual, page 7
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