Question: why does the moon appear in the day time?

Anne Green answered on 9 Nov 2018:

This is because of a combination of the Earth’s rotation every 24 hours and the moon’s orbit around the Earth every 28 days. The moon doesn’t emit light, what we see is light from the Sun being reflected off the moon. As the Earth rotates, the moon is visible above the horizon for roughly 12 hours out of every 24. And some of those 12 hours coincide with the hours of daylight. So in fact the moon is visible at some point on most days (provided it’s not being hidden by clouds). The exceptions are around new moon, when the moon is in between us and the Sun and the light from the Sun is too bright, and close to full moon when the moon is only above the horizon at night.