Here's the breakdown:
* The Moon doesn't produce its own light. It shines because it reflects sunlight.
* The full moon occurs when the Moon is on the opposite side of the Earth from the Sun. This means the entire sunlit face of the Moon is facing Earth.
* During the day, the Sun's light overwhelms the reflected light from the Moon. This makes the Moon too faint to see against the bright sky.
* At night, the Sun is below the horizon. This allows the reflected light from the full moon to be seen clearly in the darkness.
So, while the full moon technically exists during the day, we can only see it at night when the Sun isn't obscuring its light.
