/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
import java.time.* ;
import java.util.concurrent.TimeUnit ;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
 
    Instant instant = 
    Instant
    .ofEpochSecond (
        TimeUnit.NANOSECONDS.toSeconds( 1_558_439_504_711_000_000L ) ,
        ( 1_558_439_504_711_000_000L % 1_000_000_000L )
    )
    ;
 
    System.out.println( "instant.toString(): " + instant ) ;
    System.out.println( "alternatively: " + Instant.ofEpochSecond( 0L , 1_558_439_504_711_000_000L ) ) ;
	}
}

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