Comment: You don't understand the question.

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You don't understand the question.

What do you mean by a day? Biblically speaking earth was created on the first day and was formless, therefore the word earth includes but is not limited to the definition "the planet earth". Subsequently the sun was created only on the 4th day. So obviously the measure of a day by God is not referring to the ~24 hour period measuring the planet earth's rotation on it's axis relative to the sun. Finally God rested after His creature with the influence of Lucifer convinced Man to reject God.

God is the source of all and Satan exists. If Satan does not exist, then men can do no wrong.