Hexadecimal time

Hexadecimal time is the representation of the time of day as a hexadecimal number in the interval [0, 1).

This time format was proposed by the Swedish-American engineer John W. Nystrom in 1863 as part of his tonal system.

[1] In 1997, the American Mark Vincent Rogers of Intuitor proposed a similar system of hexadecimal time and implemented it in JavaScript as the Hexclock.

[2] A day is unity, or 1, and any fraction thereof can be shown with digits to the right of the hexadecimal separator.

Intuitor-hextime may also be formatted with an underscore separating hexadecimal hours, minutes and seconds.

Nystrom's tonal clock-face. The proposed figures on the right are based on rotations of those on the left (assigning value 10 to symbol 9).
A hexadecimal clock-face (using the Florence meridian )