We are over 6,000 years removed from the creation of the first man Adam in 4026 B.C.E. at the end of the 6th "creative" day.(Gen 1:26, 31) Genesis 2:1 now says that "thus the heavens and the earth and everything in them were completed".
The earth and its "heavens" or atmosphere surrounding the earth (which at the time was made up of a "heavenly ocean", Hebrew, ham·mab·bul´; Gen 6:17; 7:6; Ps 29:10, translated as "deluge") were now complete with the final touch of Jehovah God creating man for the earth as his everlasting home.
Then Genesis 2:2, 3 says that "by the seventh day, God had completed the work that he had been doing, and he began to rest on the seventh day from all his work that he had been doing. And God went on to bless the seventh day and to declare it sacred, for on it God has been resting from all the work that he has created, all that he purposed to make".
So how long are each of the "creative" days ? For an indicator as to their length, the apostle Paul wrote to the Hebrew Christians, quoting from Psalms 95, about the Israelites failing to "enter into his (God's) rest" due to lack of faith.(Heb 3:16-19)
Then Paul says that "therefore, since a promise of entering into his rest remains (some 4,000 years after Adam's creation), let us be on guard for fear someone among you seems to fall short of it (of entering into God's rest on the 7th "creative" day).....For in one place (Gen 2:2, 3) he has said of the seventh (creative) day as follows: "And God rested on the seventh day from all his works," and here again he says (at Ps 95:11): "They will not enter into my rest"(Heb 4:1, 4, 5)
Paul now says: "Therefore, since it remains for some to enter into his rest......For the man who has entered into God's rest has also rested from his own works, just as God did from his own. Let us therefore do our utmost to enter into that rest".(Heb 4:6, 10, 11)
Hence, some 4,000 years from the creation of man, in Paul's day the 7th "creative" day was still ongoing and righteous people can ' enter into Jehovah's rest ', desisting from vain works by carefully following Jesus perfect example.(1 Pet 2:21) It has had no closure like the previous six "creative" days with the words "And there was evening and there was morning".(Gen 1:5, 8, 13, 19, 23, 31)
So Jehovah's "rest day" or 7th "creative" day is yet to be completed as of now, but is to be finished at the end of Jesus millennia reign (Rev 20:4) and the fulfillment of Revelation 21:3-5 in which sickness, sorrow and (Adamic) death are done away with (Isa 25:7, 8; 1 Cor 15:26), after the earth has been transformed into a paradise as Jehovah gave the command to Adam (and Eve) and his descendants to "fill the earth and subdue".(Gen 1:28)
Jehovah God purposed from the very beginning (Gen 1:1), of the earth as being an everlasting home for "meek" ones.(Ps 37:11, 29; Ps 104:5; Matt 5:5) During Jesus millennial or "thousand year" reign (also called "the Sabbath" by Jesus at Matt 12:8), through God's Kingdom or heavenly government (Matt 6:9, 10), the earth will be changed into a paradise in which the evil-doer to the side of Jesus will be welcomed when he is resurrected from the dead along with untold millions of others.(Luke 23:43; John 5:28, 29; Rev 20:13)
We are over 6,000 years removed from the beginning of man's creation during the 7th "creative" day and are now in the "last days" (2 Tim 3:1) or "final part of the days"(Dan 2:28) or "the time of the end"(Dan 12:4) or "conclusion" of the present wicked "system of things" (Matt 24:3), but with the addition of Jesus millennial reign that brings Jehovah's work to completion of the earth becoming a paradise with "meek" ones (Isa 45:18; Isa 55:10, 11), then each "creative" day is about 7,000 years long and not as creationists say of a literal 24 hours.