Often when reading about the age of the earth, atheists tend to believe that the earth is millions of years old. Yet, many bible believing Christians believe that the creation of the earth occurred in 7 of our days that we experience on earth today. The purpose of this thread is to address the Christian view of a six day creation according to our current days. Let's turn to Genesis chapter 1:
Genesis 1:1-5
1 In the beginning God created the heaven and the earth.
2 And the earth was without form, and void; and darkness was upon the face of the deep. And the Spirit of God moved upon the face of the waters.
3 And God said, Let there be light: and there was light.
4 And God saw the light, that it was good: and God divided the light from the darkness.
5 And God called the light Day, and the darkness he called Night. And the evening and the morning were the first day.
The above are the events of the first day of creation as told in the King James Version of the Bible. The first thing to note is that the earth itself was created in what God calls "the beginning". The earth at this time was without form and void and darkness was upon the face of the deep. This seems to indicate that the entire earth was covered with water and no land with shape and mountains was yet established. It says that God moved upon the face of the waters. Once the earth was in this initial state, only then was light introduced upon the earth and the beginning of counting days was reckoned.
After the initial creation of the earth, God said, "Let there be light" and there was light. God divided the light from the darkness and called the light day and the darkness night. The evening and the morning were the first day. What was the source of the light of the first day? According to the following verses it was not the sun.
Genesis 1:14-19
14 And God said, Let there be lights in the firmament of the heaven to divide the day from the night; and let them be for signs, and for seasons, and for days, and years:
15 And let them be for lights in the firmament of the heaven to give light upon the earth: and it was so.
16 And God made two great lights; the greater light to rule the day, and the lesser light to rule the night: he made the stars also.
17 And God set them in the firmament of the heaven to give light upon the earth,
18 And to rule over the day and over the night, and to divide the light from the darkness: and God saw that it was good.
19 And the evening and the morning were the fourth day.
Evidently God had not yet set the sun, moon, or stars in the heavens above the earth until the 4th day of creation. So from this we can know that it was not the light of the sun the first gave light upon the earth during the first 3 days of creation. It had to be a separate source of light. Perhaps also, God had not given the earth the same rotation that it has today. What evidence in the Bible do we have of days being longer than they are today?
2 Peter 3:8
8 But, beloved, be not ignorant of this one thing, that one day is with the Lord as a thousand years, and a thousand years as one day.
If the days of the creation were after the Lord's time, then each day of the creation would have been one thousand of our years. This is why the duration of man's temporal existence upon this earth is 7000 years. The seventh thousand year being that of the millennial era of the earth. Perhaps it wasn't until the fall of Adam and Eve that God gave unto them their own reckoning of time in this temporal existence known as mortality.