Actually, it did. That is why the seventh day is to be kept holy as a day of rest.
Also, you seem to be ignoring the morning and evening during the week of creation. That suggests actual days.
So is God resting in what way? You do notice what Jesus said, don't you?
John 5: And therefore did the Jews persecute Jesus, and sought to slay him, because he had done these things on the sabbath day.
17 But Jesus answered them, My Father worketh hitherto, and I work.
18 Therefore the Jews sought the more to kill him, because he not only had broken the sabbath, but said also that God was his Father, making himself equal with God."
So did Jesus lie and that's why in part the Jews sought to kill him, along with saying that God was his Father? Did he break the Sabbath law, did he lie when he said his Father kept working?
(Does the Genesis account say the 7th day of creation had a beginning and an end and it does the other 6 days?)