Utter coincidence, and it only works at all if you throw in the milliseconds term, which makes it seem forced. A lot of our numbering systems are inherited fro

Utter coincidence, and it only works at all if you throw in the milliseconds term, which makes it seem forced. A lot of our numbering systems are inherited from early mathematics that dealt mainly with ratios of low whole numbers. And so selecting bases with many prime factors made the rational math easier. When your base is 60, it's easier to divide by 2, 3, 4, 5, 6, 10, 12, 15, 20, and 30. You might as well divide up the mean solar day into 10! = 1 * 2 * 3 * 4 * 5 * 6 * 7 * 8 * 9 * 10 = 2^8 * 3^5 * 5^2 * 7 = 3628800 chunks, which are each 1/42nd of a second. Or maybe make the 7 represent the 7 days in a week, and use 518400 chunks per day, each 1/6th of a second. You could divide up your time by so many whole factors.