metric seconds!

gistfile1.txt

Normal to Prefixed Seconds
--------------------------

                   1 hour ~= 4   ks
                    1 day ~= 90  ks
                   1 week ~= 600 ks
                  1 month ~= 3   Ms
                   1 year ~= 30  Ms
                 1 decade ~= 300 Ms
       average human life ~= 2   Gs
                1 century ~= 3   Gs
       longest human life ~= 4   Gs
             1 millennium ~= 30  Gs
time since the Cretaceous ~= 2   Ps
            galactic year ~= 7   Ps
                    1 eon ~= 30  Ps
         age of the earth ~= 150 Ps
      age of the universe ~= 400 Ps

Prefixed Seconds to Normal
--------------------------

  1 ks ~= 20 minutes
 10 ks ~= 3  hours
100 ks ~= 1  day
  1 Ms ~= 10 days
 10 Ms ~= 15 weeks
100 Ms ~= 3  years
  1 Gs ~= 30 years
  1 Ts ~= 30 millennia
  1 Ps ~=    half the time since the Cretaceous period
  1 Es ~=    twice the age of the universe