Try this math for size:
Have you heard of leap year, every 4 years we add a date to the calendar (February 29).
There is also something called leap second.
https://en.wikipedia.org/wiki/Leap_secondSince this system of correction was implemented in 1972, 27 leap seconds have been inserted, the most recent on December 31, 2016 at 23:59:60 UTC
So the rate that the leap second is added is
27 seconds / 44 years = 0.613636364 seconds/year
.
What does that actually means?
Last year the earth needed 0.614 seconds to complete it’s revolution.
Than in turn means that last year was spinning faster than this year.
Let extrapolate the math at this rate:

We see that in the bible timeline, the earth rotation is very close to our about 23 hours in a day, but at 140,800 years, the earth spins at 60 RPM, that is 60 revolutions per minute.
At 1 million years ago, the earth rotated at a rate of about 480 RPM
At 100 million years ago, the earth rotated at a rate of 42,613.6 RPM
But let me guess, gravity was much stronger back them and kept everything in place…
Busted!!!