Gen.1.8

he named sky the Heavens; It was evening, it was morning--Day Two.

Gen.1.8

God called the expanse "sky." And there was evening, and there was morning-the second day.

Gen.1.8

And God called the firmament Heaven. So the evening and the morning were the second day.

Gen.1.8

And God called the space "sky." This happened on the second day.