public class Main {

  public static void main(String[] args) {

    long date = 1711638903488L; // Unix timestamp (number of milliseconds since January 1, 1970)

    String result;

​

    // Time

    result = String.format("%tl:%<tM %<tp", date);

    System.out.println(result);

​

    // Month and day

    result = String.format("%tB %<te", date);

    System.out.println(result);

​

    // Full date representation

    result = String.format("%tc", date);

    System.out.println(result);

  }

}

​