And later, with the calendar came a simpler version with 100 minutes in an hour, 100 seconds in a minute, and so on (Article XI of the "Décret de la Convention Nationale concernant l'Ere des Français" [1]). It was only official (and mandatory) for a few months, however [2].
Edit: the one with 1M seconds a day was only an earlier draft version that never made it into law.
[1]: http://www.gefrance.com/calrep/decrets.htm (in french)
