Decimal systems of time are not new, nor are they rare.

The ancient Chinese, Egyptian, and Hawaiian cultures, all independently derived base-ten systems of time and calendar reckoning.

In the late 1700’s the Revolutionary French Republicans also created a decimal calendar and *time* systems to go with their other metric innovations of mass, distance, volume and temerature.

In the late 1800’s, English astronomer John Herschel – son of William Herschel, discoverer of Uranus – began using the decimal fraction of the JulianDay to time-stamp his nightly observations.

In the late 1900’s, amid a flurry of Y2K interest in time by such intrepid tree-octopus hunters as Lyle Zapato, ground-breaking Dutch Digital Media Theorist Geert Lovink, even Swiss toy-watch manufacturer SWATCH briefly tested the waters, peddling a colorful array of plastic watches that displayed a decimal fraction of the day called ‘beats’. Hurray Nicholas Negroponte!

Call it what you will — Chinese *ke; *French *cés; *Hawaiian *kaukani*, ticks, beats, grands, measures, cycles, or simply a ‘kilo of time’, have been around all along. Quietly in the background, decimal time systems have never stopped. In fact, they have been ticking all along. Today J2000.0, is the decimal date & time-code used in high-eschlon satellite and mission control applications.

The 5th decimal fraction of the day — 0.00001 day — is surprisingly close to the 60-seconds-per-minute we are more familiar with. As there are 86,400 seconds in one day, there are 100,000 ticks of decimal time. 20 ticks = 17 seconds

This ‘*decimal second*‘ (Greek ‘*chi*‘, Latin ‘*tempus*‘, French, Hawaiian ‘*iki*‘,

about 4/5th of which is 1/86,400 the of the day.

The “chi (* χ*) duration” — named after the first letter of the Greek word chronos (

*χ*

*ρόνος)*meaning ‘time’ — is . As there are 86,400 seconds in each mean solar Earth day (24 x 60 x 60), it follows that with 100.000 division of the day, each part is then 86.400/100.000 or more simply 0,864 seconds.

To experience this ‘*chi duration*‘ of time, if one is attentive, the subtle but perceptible up-tempo of chi is familiar, shifted only slightly faster (~14%) than seconds, at roughly 70 bpm. Music is the art form most deeply concerned with time and tempo, and has a sophisticated lexicon to describe a broad range of tempi. A*dagio, *is the Italian for this pace, which translates loosely as: slowly, gentle, easy. Not quite languid, but not brisk either.

Turning back to science and a new set of definitions for decimal space-time units, *chi* is defined as equal to 864 milliseconds, or more precisely 7.942.433.849 +/-20 oscillations of Ce 133 atom under controlled conditions. When *chi* is combined with the International System (SI or ‘metric’) prefixes of *nano- milli-, kilo-, mega-, giga-* etc — and then applied to the spatial distance traversed at the constant speed of light thru a vacuum, a new set of decimal *space-time* units are created.

ONE LIGHT CHI

If light travels 186.000 miles per second, how far can light travel in one ** chi**? Remember, 1

*χ = 864 ms.*How far can light travel in 86.4% of one second? 260.000 km!

ONE LIGHT KILOCHI

1.000 chi = 1 kilochi (kχ) ~15 minutes.

1 light kχ, light travels 260 million km.

If you drew a equilateral triangle in space, with each leg equal to 1 *light kχ*, each point would touch the orbit of the Earth/Moon system on Lagrange nodes. Johannes Kepler would be so proud!

The Earth to the Sun is about 150 million km. This distance is defined as 1 ‘astronomical unit’, or 1 AU.

ONE LIGHT MEGACHI

After kilo comes Mega, meaning ‘one million’. Mega chi — M*χ* — one million decimal seconds turns out to be exactly 10 days. Instead of the familiar Judeo/Babylonian 7-day week, the Hawaiian, Chinese and Egyptian were several cultures to discern the value of a ’10 day week’. Hawaiian, this period of time is ‘* Anahulu’*. To those of us steeped in ‘God Created the Earth in Seven Days”, it may be surprising to learn that

*three*10-day-weeks (3 x 10 = 30) is a much better fit to Earth’s lunar month cycle 29.54d than

*four*7-day weeks (4 x 7 = 28). And with a 10-day week,

*every weekend*is a 5 day weekend! Weeeeee!

How far can light travel in 1LM*χ? * Quite a ways!

ONE LIGHT GIGACHI

Giga chi — G*χ —* are about equal to a ‘Saturn Return’ or 27,4 years . In one gigachi, light travels 27,4 lights years, or more commonly used by astronomer, 8,4 parsecs. Here is a map of our local stellar neighborhood.

ONE LIGHT TERACHI

After Giga- comes Tera-. 1.000 G*χ* = 1 T*χ. *

In a T*χ *of 27.400 years, light travels 8.400 parsecs, coincedently the very distance our solar system is to the behive of blackholes buzzing in the middle of our Milkyway Galaxy

And that is enough to think about for one La!