This clock uses an octal (base-8) system (digits 0–7). The day is divided into three eight-hour cycles, replacing the two twelve-hour cycles conventionally called a.m. and p.m. (from the Latin phrases ante merīdiem “before noon” and post merīdiem “after noon” respectively). Each hour is divided into 64 equal minutes, and each minute into 64 equal seconds, for a total of 5 octal digits. The rightmost digit therefore updates slightly faster than SI seconds.
For the hours digit, the single symbol for “eight” is retained for convenience. If the clock is imagined as being used in a future scenario in which the octal number system has been generally adopted, the “8” character could come to be associated with time and with the measurement of time. It might be perceived as being related to the infinity symbol (∞).