Astronomers aren't using software to determine the length of the day, but telescopes. (Well, they are using software too, but that isn't the problem.) The artif

Astronomers aren't using software to determine the length of the day, but telescopes. (Well, they are using software too, but that isn't the problem.) The artificial second we use for our clocks because that's easier for some of our other sciences and technologies does not set the standard for what a day is. So something has to give, and the astronomers were there first, and for good reason, because their definition conforms to what humans actually think of what a day is. It is the computer makers that have made substandard software and push its cost onto society.