/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
import java.time.*;
import java.time.temporal.*;
import java.time.format.*;
 
/* 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
	{
 
    String input = "2017-04-21T17:46:00Z" ;
    Instant instant = Instant.parse( input ) ;
 
    OffsetDateTime odt = instant.atOffset( ZoneOffset.UTC ) ;
 
    DateTimeFormatter f = DateTimeFormatter.ofPattern( "hh:mm dd MMM yyyy" , Locale.US ) ;
    String output = odt.format( f ) ;
 
    ZoneId z = ZoneId.of( "Europe/London" ) ;
    ZonedDateTime zdt = instant.atZone( z ) ;
 
    System.out.println( "instant.toString(): " + instant ) ;
    System.out.println( "odt.toString(): " + odt ) ;
    System.out.println( "output: " + output ) ;
    System.out.println( "zdt.toString(): " + zdt ) ;
 
	}
}

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