Task
 
Choose popular date libraries used by your language and show the   epoch   those libraries use.

A demonstration is preferable   (e.g. setting the internal representation of the date to 0 ms/ns/etc.,   or another way that will still show the epoch even if it is changed behind the scenes by the implementers),   but text from (with links to) documentation is also acceptable where a demonstration is impossible/impractical.

For consistency's sake, show the date in UTC time where possible.



Related task

   Date format


' FB 1.05.0 Win64
 
#Include "vbcompat.bi"
 
' The first argument to the Format function is a date serial
' and so the first statement below displays the epoch.
 
Dim f As String = "mmmm d, yyyy hh:mm:ss"
Print Format( 0 , f)      '' epoch
Print Format( 0.5, f)     '' noon on the same day
Print Format(-0.5, f)     '' noon on the previous day
Print Format(1000000, f)  '' one million days after the epoch
Print Format(-80000, f)   '' eighty thousand days before the epoch
Print
Print "Press any key to quit"
Sleep