A traffic light illumination duration indicator that provides a motor vehicle operator with a visual indicator of the current illuminated light time remaining before the light changes. The visual indicator is a digital display for showing the remaining minutes and seconds before the traffic light changes state between green, amber and red. The visual indicator can also be a clock-like face that either turns on or turns off a plurality of LED's in a hand sweep action indicating the time duration before the traffic light changes from one state to another.