Mxsmanic wrote:

JohnT writes:


You would only be able to verify that claim if you measured the time errors
over 3 million years. Not even you could do that.


You can measure the error over one day and extrapolate.

So, you have the ability to measure the error for one day and
extrapolate over 3 million years, meaning you have measured the daily
error, and found it to be less than 1 billionth of a second off?