First, let´s reflect on the "never well weighted" seven days.
Of course, the seven biblical days should have some sort of explanation, I thought, and I devoted myself to find it.
The first thing that occurred to me was that if God was infinite, a God's day might last a billion years, so seven days of God may well be six billion years. You may say, why six billion years? Well, because it is currently estimated that from the original nebula to the present six billion years have passed, and four billion six hundred million years since the consolidation of the Earth.
Although Occident has not handled major figures -and when I say major figures I mean figures as large as billions of years- in their mythologies, it may be interesting to note that in India, at the time of writing the Genesis they were already used to thinking of numbers of that magnitude.
For example: according to the Vedic scriptures , the four yugas (ages) form a cycle of 4,320,000 years (MajÃ¡-yuga, or 'great age'), which is repeated again and again. The first is the Satya-yuga or 'age of truth' of 1,728,000 years in which the average life span of a person was 100,000 years. It is the Golden Age, according to another classification.
Then comes the Duapara-yuga or 'second age' which covers 1,296,000 years with an average life span of 10,000 years; it is also called the Silver Age.
The 'third age', Treta-yuga, lasted about 864,000 years, with an average life span of 1,000 years; it is also known as the Bronze Age (although it is not meant to match the Bronze Age in India).
Finally, Kali Yuga or "age of quarrel" lasted 432,000 years where the average life span of a human being was 100 years (at the beginning of it, 5100 years ago). It was called Iron Age (it is not meant to match the Iron Age in India either)...