import java.text.SimpleDateFormat;

import java.time.LocalDate;

import java.time.LocalDateTime;

import java.time.LocalTime;

import java.time.format.DateTimeFormatter;

import java.util.Calendar;

import java.util.Date;

import java.util.TimeZone;

public class MainDate {

public static void main(String[] args) {

long start = System.currentTimeMillis();

Date date = new Date();

System.out.println(date);

System.out.println(System.currentTimeMillis() - start);

Calendar calendar = Calendar.getInstance();

calendar.setTimeZone(TimeZone.getTimeZone("America/Los_Angeles"));

System.out.println(calendar.getTime());

LocalDate localeDate = LocalDate.now();

LocalTime localeTime = LocalTime.now();

LocalDateTime ldt = LocalDateTime.of(localeDate, localeTime);

System.out.println(ldt);

SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM/dd");

System.out.println(sdf.format(date));

DateTimeFormatter dtf = DateTimeFormatter.ofPattern("yyyy/MM/dd");

System.out.println(dtf.format(ldt));

}

}