Decimal time is the representation of the time of day using units which are
decimally related. This term is often used specifically to refer to French Revolutionary Time, which divided the day into 10 decimal hours, each decimal hour into 100 decimal minutes and each decimal minute into 100 decimal seconds, as opposed to the more familiar
standard time, which divides the day into 24
hours, each hour into 60
minutes and each minute into 60
seconds.