Whenever you do say "God created the heavens and Earth in six days" you are actually quoting the Koran which says that.
The Bible says:
Exo_20:11 For in six days the LORD made heaven and earth, the sea, and all that in them is, and rested the seventh day: wherefore the LORD blessed the sabbath day, and hallowed it.
Exo_31:17 It is a sign between me and the children of Israel for ever: for in six days the LORD made heaven and earth, and on the seventh day he rested, and was refreshed.
It is a misquote made very often by YEC's
Genesis 1:1 In the beginning God created the heavens and the earth. - What translation are you using?
New International Version
In the beginning God created the heavens and the earth.
New Living Translation
In the beginning God created the heavens and the earth.
English Standard Version
In the beginning, God created the heavens and the earth.
Berean Study Bible
In the beginning God created the heavens and the earth.
New American Standard Bible
In the beginning God created the heavens and the earth.
New King James Version
In the beginning God created the heavens and the earth.
King James Bible
In the beginning God created the heaven and the earth.
Christian Standard Bible
In the beginning God created the heavens and the earth.
Contemporary English Version
In the beginning God created the heavens and the earth.
Good News Translation
In the beginning, when God created the universe,
Holman Christian Standard Bible
In the beginning God created the heavens and the earth.
International Standard Version
In the beginning, God created the universe.
NET Bible
In the beginning God created the heavens and the earth.
New Heart English Bible
In the beginning God created the heavens and the earth.
GOD'S WORD® Translation
In the beginning God created heaven and earth.
JPS Tanakh 1917
In the beginning God created the heaven and the earth.
New American Standard 1977
In the beginning God created the heavens and the earth.
King James 2000 Bible
In the beginning God created the heaven and the earth.
American King James Version
In the beginning God created the heaven and the earth.
American Standard Version
In the beginning God created the heavens and the earth.
Brenton Septuagint Translation
In the beginning God made the heaven and the earth.
Douay-Rheims Bible
In the beginning God created heaven, and earth.
Darby Bible Translation
In the beginning God created the heavens and the earth.
English Revised Version
In the beginning God created the heaven and the earth.
Webster's Bible Translation
In the beginning God created the heaven and the earth.
World English Bible
In the beginning God created the heavens and the earth.
Young's Literal Translation
In the beginning of God's preparing the heavens and the earth --