Well, I trust the data starting around 1950, but the moon messes with Earth's rotation give or take up to 4 milliseconds.
(https://c.tadst.com/gfx/1200x675/length-of-day-graph.png?1)
That's just loony! 😁
I hate it when the length of the day becomes shorter.
I have no time to lose.
It averages out to exactly something.
No, it averages out to approximately something. There are no exact measurements.
Exactly.