One way. 

#! perl -slw
use strict;
use Date::Manip;

print UnixDate( 
    DateCalc( 
        ParseDate('December 28, 1800')
    , '+72583 days')
, '%Q');
__END__
C:\test>248106
19990919

[download]
Examine what is said, not who speaks.
1) When a distinguished but elderly scientist states that something is possible, he is almost certainly right. When he states that something is impossible, he is very probably wrong.
2) The only way of discovering the limits of the possible is to venture a little way past them into the impossible
3) Any sufficiently advanced technology is indistinguishable from magic.
Arthur C. Clarke.

In reply to Re: Calculating date from a fixed point by BrowserUk
in thread Calculating date from a fixed point by aschroh

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