Question

when the earth came to exist it is night or day​

Answer 1

Answer:

your answer is both because on one side of earth is day and on other side is night :)

Answer 2

Answer:

An Earth day is 24 hours because the Earth spins on its axis once every 24 hours. At any one time half of the Earth's sphere is in sunlight (day) while the other half is in darkness (night).

Hope it's help you