| 摘要 |
<p>A vehicular light automatic control device is provided with a forward illuminance sensor 2 for detecting illuminance forward of a vehicle, an upward illuminance sensor 3 for detecting illuminance upward of the vehicle, and a control unit 4 for controlling an ON/OFF operation of a vehicular light based upon the illuminance forward of the vehicle and the illuminance upward of the vehicle. The vehicular light automatic control device is provided with a time zone determining unit 44 for determining whether or not a present time is in a time zone of nightfall, wherein when it is determined that the present time is in the time zone of nightfall, the control unit prohibits an OFF operation of the vehicular light afterwards.
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