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I’m guessing by “history” they mean since we started measuring this accurately? Iirc the earth used to spin faster so going back a few centuries or millennia should give days measurably shorter than what we have now.
Yes, shortest since measuring with an atomic clock, in 1973.
Not shorter than 5th of July 2024 though, where it was 1.66ms and is still the record holder since measuring.
That graph makes it look like 5 seconds shorter is no problem? How could a millisecond be a record?
I believe you’re looking at the wrong y axis.
You are correct.
