Mayan's believed each day back then totaled to around 1.26 billion days that we have now. Also pangea was before the flood, and pangea was the flat of the earth.
7 days, 6 nights.
Also in the Bible it reads..
"eloved, do not forget this one thing, that with the Lord one day is as a thousand years, and a thousand years as one day" (2 Peter 3:8).
