/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
import java.time.* ;
 
/* 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.parse( "2018-01-23T01:23:45.123Z" ) ;
    OffsetDateTime odt = instant.atOffset( ZoneOffset.UTC );
 
    ZoneId z = ZoneId.of( "America/Denver" ) ;  
    ZonedDateTime zdt = odt.atZoneSameInstant( z ) ;
 
    System.out.println( "odt: " + odt );
    System.out.println( "zdt: " + zdt );
 
	}
}

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