We had to learn decimal multiplication tables at schools,
but
they are not very useful with base-60
hours/minutes/seconds,
base-7 weeks, base-24 days, base-12 months, and base-
Jesus
years. Let's face it -- our calendar is a mess. Here was an
idea
from my childhood, trying to make my life
easier:

1 year = 10 months
1 week = 10 days
1 day = 10 hours
1 hour = 100 minutes
1 minute = 100 seconds

=> 1 second = 0.864 standard SI seconds.
=> 1 month = 3~4 weeks.
+> Time starts at Unix zero

>>> from detime import Date
>>> Date(1970, 1, 1)
0000-01-01 00:00:0.00000

The only sensible way forward is to attach massive
rockets at a tangent to the Earth's surface to speed
up the Earth's rotation so that there are 1000 days
in a year (or, I suppose, slow it down so that there
are 100 days in a year)