Either that, or they were created in 4004 BC.
Adam and Eve and the Garden of Eden were created in 4004 BC. Genesis 2 "2 And by the seventh day God had finished the work He had been doing". The word
Finished is very important here. We only have 32 verses to work with and very few word, so we have to look at what those words mean.
I was a carpenter. When we build a house and we are finished - we hand the owner a key to their new house. It is a little absurd to say that we built the house and finished our work on the same day. Although that is possible, it is very difficult to get all the different people on the job doing the work all on the same day.
We are told in Isaiah 46: 10 "God declares the end from the beginning". We are told in Jeremiah 1:12 "I will hasten my word to perform it." God does what He says He will do. He watches to see that His words are fulfilled.
David tells us in Psalm 139:16 "Thine eyes did see my substance, yet being unperfect; and in thy book all
my members were written,
which in continuance were fashioned, when
as yet there was none of them."
I had a dream about my daughter in Heaven and the angel assigned to her was reading her book that God had written to help her become the person God is Creating her to be. All of our DNA is there at conception. All of our gifts, talents and abilities and IQ is there from the beginning. We need to use all of what God has given us to bring Him praise, honor and glory.
God created man on the sixth day and put him in the garden on the eighth day. The eighth day was 4004 BC. The last 6 days were 1000 years and the first 7 days were 1000 year days. You can not call them 24 hour days unless you use the word "finished". Because there was a literal 24 hour day when God finished His work. Even then between day six when God created man and day 8 when God placed the man in the Garden of Eden we still have day 7 when God rested. God did not create man and put him in Garden on the same day.