The Cosmic Day of the Chaldeans
A cosmic day or period with the Chaldeans was a great cycle of forty-three thousand two hundred years; and of the Chaldeans Lenormant says:
"They were the first to divide the day into twenty-four hours, the hour into sixty minutes, and the minute into sixty seconds. Their great periods of time were calculated on this scale. The great cycle of 43,200 years, regarded by them as the period of the precession of the Equinoxes, was considered as one day in the life of the Universe."
In the Chaldean account of the Creation these cosmic days and years were used representatively for great periods; and all the time-divisions of the Hebrews were the same as those in use by the Chaldeans. The relation of these time-periods or cosmic days of the Chaldeans, to the discoveries of modern geology, is therefore plainly seen.
The Eden narrative, commencing Genesis ii. 4, says:
"These are the generations of the heavens and the earth in the day when they were created, in the day that the Lord God made the heavens and the earth."
Here is a day spoken of, which shows that the term is there used for indefinite periods of time.