Answers for "how to get timestamp in java"

java timestamp

Timestamp timestamp = new Timestamp(System.currentTimeMillis());
//2016-11-16 06:43:19.77
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java timestamp

package com.mkyong.date;

import java.sql.Timestamp;
import java.text.SimpleDateFormat;
import java.util.Date;

public class TimeStampExample {

    private static final SimpleDateFormat sdf = new SimpleDateFormat("yyyy.MM.dd.HH.mm.ss");

    public static void main(String[] args) {

        //method 1
        Timestamp timestamp = new Timestamp(System.currentTimeMillis());
        System.out.println(timestamp);

        //method 2 - via Date
        Date date = new Date();
        System.out.println(new Timestamp(date.getTime()));

        //return number of milliseconds since January 1, 1970, 00:00:00 GMT
        System.out.println(timestamp.getTime());

        //format timestamp
        System.out.println(sdf.format(timestamp));
        
    }

}
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get current date time timestamp java

// 2021-03-24 16:48:05.591
  Timestamp timestamp = new Timestamp(System.currentTimeMillis());

  // 2021-03-24 16:48:05.591
  Date date = new Date();
  Timestamp timestamp2 = new Timestamp(date.getTime());

  // convert Instant to Timestamp
  Timestamp ts = Timestamp.from(Instant.now())

  // convert ZonedDateTime to Instant to Timestamp
  Timestamp ts = Timestamp.from(ZonedDateTime.now().toInstant()));

  // convert Timestamp to Instant
  Instant instant = ts.toInstant();

java timestamp

package com.mkyong.app;

import java.sql.Timestamp;
import java.text.SimpleDateFormat;
import java.util.Date;

public class TimeStampExample {

    // 2021.03.24.16.34.26
    private static final SimpleDateFormat sdf1 = new SimpleDateFormat("yyyy.MM.dd.HH.mm.ss");

    // 2021-03-24T16:44:39.083+08:00
    private static final SimpleDateFormat sdf2 = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSXXX");

    // 2021-03-24 16:48:05
    private static final SimpleDateFormat sdf3 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

    public static void main(String[] args) {

        // method 1
        Timestamp timestamp = new Timestamp(System.currentTimeMillis());
        System.out.println(timestamp);                      // 2021-03-24 16:34:26.666

        // method 2 - via Date
        Date date = new Date();
        System.out.println(new Timestamp(date.getTime()));  // 2021-03-24 16:34:26.666
                                                            // number of milliseconds since January 1, 1970, 00:00:00 GMT
        System.out.println(timestamp.getTime());            // 1616574866666

        System.out.println(sdf1.format(timestamp));         // 2021.03.24.16.34.26

        System.out.println(sdf2.format(timestamp));         // 2021-03-24T16:48:05.591+08:00

        System.out.println(sdf3.format(timestamp));         // 2021-03-24 16:48:05

    }
}