In 1788, Claude Boniface Collignon proposed dividing the day into 10 hours or 1,000 minutes, each new hour into 100 minutes, each new minute into 1,000 seconds, and each new second into 1,000 tierces (older French for “third”). The distance the twilight zone travels in one such tierce at the equator, which would be one-billionth of the circumference of the earth, would be a new unit of length, provisionally called a half-handbreadth, equal to four modern centimetres. Further, the new tierce would be divided into 1,000 quatierces, which he called “microscopic points of time”. He also suggested a week of 10 days and dividing the year into 10 “solar months”.[7]
Hate to be a stickler, but wouldn’t 9:75 actually be a quarter AFTER 10 seeing as how it’d be 10:15 equivalent?
I’m afraid you’re not counting all 100 minutes in an hour.
Ah damn. I used imperial time units instead of metric. My bad.