We had this same kind of discussion about 15 months ago ....
http://www.iceinspace.com.au/forum/s...ad.php?t=10567
I'm going to post part of what I said back then:
" I quote my height as 5'8", but specify my weight in kilograms...
I put 34-36 psi of air in my tyres, which run on 16" wheels, but the other set of wheels .... are 15" diameter running 235/70 (ie 235 mm width) tyres.
My petrol tank holds 132 litres of fuel, and 65 litres of LPG in the gas tank, but I work out my economy in miles per gallon if I want a figure that means something to me ...
I read the celsius figures on my thermometer, but I still quote atmospheric pressure as 14 psi (at sea level - my old chem teacher would be horrified that I didn't quote it as 101.3 kPa instead) and I know that a 20 knot wind will make the rigging on a 15 foot hobie-cat "hum".
I simply use or quote whichever figures work well for me, the ones that I can best understand or appreciate in the privacy of my own mind, but if you want a system of measurements that makes some kind of sense then the metric measurements win hands down "
As for metric time - it's been done before... the Julian Date system is a
kind of metric time scheme, the best known version around here, and it is one that works in some arenas - as long as you find time of the format
(7digits).(8digits) easy to work with on a day to day basis.
Other suggested versions of metric time:
http://www.billcollins.com.au/bc/mt/index.htm
http://zapatopi.net/metrictime/
http://www.indwes.edu/Faculty/bcupp/things/metrictm.htm
http://www.decimaltime.hynes.net/metric.html
There's dozens more around the net, some good some bad - many similar ones derived by many people - trouble is, none of these systems do quite work. Bit of a shame really, I quite LIKE the idea of metric time!
It seems that the Universe itself does not
WANT to be metricised!