Strange Equation about the length of time

[LacklusterMathman]

Hello all, please forgive me if this isn't the right thread to ask this question, I'm absolutely terrible at math so I was hoping any leads to a better suited thread, or an equation (if I could be so lucky) to fulfill a writing project I want to begin would be much appreciated, so here we go.

I was wondering if there is a base equation to calculate the estimated being of earth (4.54 billion years) into a calender year with accuracy? Example: the beginning of earth would be 4.54 billion years old, so the calender date would be January 1, Time 00:00.

I'm willing to email or call anyone who can help me with this problem of mine, and any help will be honorably mentioned in my project (I don't plan on it becoming world renowned, but it's better to give credit not only moraly, but just in case so you get the credit you deserve). Thanks to all who read and consider this prospect!

 

[skeeter]

Earth’s Calendar Year - Biomimicry 3.8

4.5 billion years compressed into 12 months

biomimicry.net

 

[Otis]

… [earth's estimated age] into a calendar year with accuracy … the beginning of earth would [correspond to] the [calendar date] January 1, Time 00:00

Hi LM. It would be helpful for people to know what you're trying to accomplish by relating such dates and times.

For example, if you're trying to determine what fractional part of 4.5 billion years corresponds to a specific timestamp on the calendar, then you could work with percents and percentages.

Tonight (on the west coast of the USA), exactly 4,827,764 seconds will have elapsed from 01-01-2023 @00:00:00 through 02-25-2023 @21:02:44 – according to some online Time & Date calculators.

Comparing 4,827,764 seconds to the total seconds in a non-leap year yields a percent (in decimal form):

4827764/31536000 = 0.153 (rounded)

In other words, at 2 minutes 44 seconds after 9pm tonight (west coast time), about 15.3% of 2023 will have elapsed.

4500000000 × 0.153 = 688500000

Using 15.3%, the calendar timestamp tonight corresponds to the first 688,500,000 years of Earth's estimated age.

To obtain percentages with greater precision, we could use a calculator that displays more digits in our percent calculation:

4827764/31536000 = 0.153087392186707

4500000000 × 0.153087392186707 = 688893264.8401826

The additional digits yield a result that is about 393,265 years longer than the estimate we obtained using 15.3%.

688892264.8401826 – 688500000 = 393264.8401826

The process could be reversed. If you have something else in mind, then please provide an example or explanation.
[imath]\;[/imath]