R2DeltaSquared

So the number 86.4 in the previous post was not chosen at random. There are 86400 seconds in the day. So all we are doing is finding the percentage of seconds elapsed in the day and shifting the radix point over and rounding.

If one wanted to calculate the decimal day, one could add a parameter for the UTC offset to add timezone information. Shift the radix point some more and wind up with decimal Hours, and minutes. (100 beats make a decimal hour, 1 beat is a decimal minute.)

People did try to use that time system during the French Revolution but it caught on roughly as well as swatch-time did.