Billions and Billions

Answer: Billions and billions of seconds.

The Bible doesn't provide the answer directly, but does provide enough genealogies and
historical markers that scholars have converged on an answer with a manageable uncertainty.
The greatest age discrepancy is generated from passages that occur in the Masoretic text and
their counterparts in the Septuagint [1]. From these studies, we find that the most distant time
for creation year is 5504 BC, while the closest is 3929 BC [2].

Since the beginning of creation is charted in days, it seems appropriate to calculate the age of
the Earth in these units. It is commonly agreed that the ancient calendar chosen for the length
of a year is 365.25 days [3], therefore the age of the Earth is 2.5 +/- 0.3 million days.

If we define an hour as 1/24 of a day, a minute as 1/60 of an hour, and a second as 1/60 of a
minute, then the age of the Earth can be no less than 190 billion seconds.