Dear Brij

Considering present length of the Metre, Earth can be considered a 'hypothetical sphere' of radius 6371 km, with its circumference:40030.1592786906 km.

I can't quite work this out. If we take the Earth radius as 6371 km, and assume a perfect sphere, I get 40030.1735920411 km (rounded to 10 dp) when I multiply 6371 by 2 * pi (using pi = 3.1415926535 ... from windows calculator)

Earth circumferece of 360-degree, then works to 111.194886885252 km/degree; and 1/10^5th of the degree could be usefully used to re-define the METRE (New (m') as length unit:
         1 Metre New (m') = 1.11194886885252 m
This can easily be TIED to the new interval for time (without changing the existing face of 24-hour clocks) 24-hours x 100 md x100sd, each decimal second of 0.36 of SI-atomic second.

If we keep the same clock face we won't be able to count the decimal minutes or seconds surely?

The normal clock face (both 12 and 24 hour) uses the fact that 60 divides by 12 so the hour markings (or alternate hour markings for 24 hour version) count 5 min or 5 sec intervals. In other words the seconds, minute and hour hands can all use the same markings on the dial. Unfortunately neither 12 or 24 divide into 100 so the markings won't line up.

Your decimal time Brij will need digital clocks (which I prefer anyway)

Phil Hall

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