Clock
The clock must be reset any time the battery has been disconnected or discharged.
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                  Press and hold the MODE button to enter the settings menu. 
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                  Press either toggle button to cycle to the “CLOCK” option. Press MODE to select. 
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                  Press either toggle button to cycle to the desired setting (12H or 24H). Press MODE to select. 
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                  Press either toggle button to change each segment of the clock. Press MODE to accept a change and advance to the next segment. 
