“God called the light day, and the darkness He called night. And there was evening and there was morning, one day.”  Gen. 1:5

Most English translations of this verse read very similarly.  So do most Jewish translations, however the English is different from the Jewish.  Most Jewish translations read something like:

God called to the light:  “Day”, and to the darkness He called: “Night”. (emphasis mine)

So instead of simply declaring a formal name for light and darkness, it is more like God is now telling these newly created entities what their roles, or jobs, will be; the divinely declared ordinance of their operation.  Before we rule this out, we must consider that we do not know or understand God’s relationship with His created things, aside from humans.  For instance, we are told that the rocks can cry out (Luke 19:40), and Isaiah 55:12 reads:

“”For you will go out with joy And be led forth with peace; The mountains and the hills will break forth into shouts of joy before you, And all the trees of the field will clap their hands.”

In fact, part of the context of Isaiah 55 is declaring that the things God created have specific purposes that they will fulfill.  That chapter also happens to be home to the verse which reads:

“For as the heavens are higher than the earth,
So are My ways higher than your ways
And My thoughts than your thoughts.”  (Isaiah 55:9)

Lastly, we note that the verse ends with “and there was evening, and there was morning, one day.”  This shows us the Jewish pattern of a day, that the day begins at sundown (evening, then morning.)