Save electricity during daytime

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I wanted to construct a circuit that will cut off power to street lights in my college campus during day and automatically switch them on during evening. can someboby help me build this circuit?
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thanks, i'm here to understand something about this..
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To make a perfect circuit you should use logic gates from a truth table, it is the main two possible method. first method is Sum of Products and the other method is by Products of Sums.
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