java string to instant
// Java program to demonstrate 
// Instant.parse() method 
  
import java.time.*; 
  
public class GFG { 
    public static void main(String[] args) 
    { 
  
        // get Instant using parse method 
        Instant instant 
            = Instant.parse("2018-11-30T18:35:24.00Z"); 
  
        // print result 
        System.out.println("Instant: "
                           + instant); 
    } 
}