ดาวโหลดหนังสือ Science and Hypothesis (Henri Poincare)





https://www.dropbox.com/s/cyyjiltap86660o/scienceandhypoth00poinuoft.pdf



From and including: Monday, 25 April 1988
To and including: Sunday, 2 June 2013

It is 9170 days from the start date to the end date, end date included

Or 25 years, 1 month, 9 days including the end date

Alternative time units
9170 days can be converted to one of these units:◾792,288,000 seconds
◾13,204,800 minutes
◾220,080 hours
◾1310 weeks