Java Get Current Timestamp

1. Overview

In this tutorial, We'll learn how to get the current timestamp in java in various ways.

Let us jump into the right examples with JDK 8 and older jdk.

2. Java Get Current Timestamp using TimeStamp class

Example 1:

package com.javaprogramto.java8.dates.timestamp;

import java.sql.Timestamp;

public class CurrentTimestampExample1 {

	public static void main(String[] args) {

		long timestampInMillies = System.currentTimeMillis();
		
		Timestamp timestamp = new Timestamp(timestampInMillies);
		System.out.println("timestamp now : "+timestamp);
	}

}

Output:

timestamp now : 2021-11-22 19:57:00.7

3. Java Get Current Timestamp using Date.toInstant() Method

Example 2:

package com.javaprogramto.java8.dates.timestamp;

import java.time.Instant;
import java.util.Date;

public class CurrentTimestampExample2 {

	public static void main(String[] args) {

		Date dateNow = new Date();

		Instant instant = dateNow.toInstant();

		System.out.println("timestamp now : " + instant);
	}
}

Output:

timestamp now : 2021-11-22T14:32:05.069Z

4. Java Get Current Timestamp using SimpleDateFormat and Date

Example 3:

package com.javaprogramto.java8.dates.timestamp;

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

public class CurrentTimestampExample2 {

	public static void main(String[] args) {

		SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
		Date dateNow = new Date();

		String timestampNow = simpleDateFormat.format(dateNow);

		System.out.println("timestamp now : " + timestampNow);
	}

}

Output:

timestamp now : 2021-11-22 20:04:49

5. Java Get Current Timestamp using TimeStamp to Instant

Example 4:

package com.javaprogramto.java8.dates.timestamp;

import java.sql.Timestamp;
import java.time.Instant;

public class CurrentTimestampExample4 {

	public static void main(String[] args) {

		long timeInMillis = System.currentTimeMillis();

		Timestamp timestamp = new Timestamp(timeInMillis);

		Instant instant = timestamp.toInstant();

		System.out.println("timestamp now : " + instant);
	}
}

Output:

timestamp now : 2021-11-22T14:38:22.927Z

6. Java Get Current Timestamp using Instant

Example 5:

package com.javaprogramto.java8.dates.timestamp;

import java.time.Instant;

public class CurrentTimestampExample5 {

	public static void main(String[] args) {

		Instant instant = Instant.now();

		System.out.println("timestamp now : " + instant);
	}

}

Output:

timestamp now : 2021-11-22T14:38:22.927Z

7. Java Get Current Timestamp using LocalDateTime

Example 6:

package com.javaprogramto.java8.dates.timestamp;

import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;

public class CurrentTimestampExample7 {

	public static void main(String[] args) {

		LocalDateTime localDateTime = LocalDateTime.now();

		DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss SSS");

		String timestamp = formatter.format(localDateTime);

		System.out.println("timestamp now : " + timestamp);
	}
}

Output:

timestamp now : 2021-11-22 20:14:06 725

8. Java Get Current Timestamp using ZonedDateTime

Example 7:

package com.javaprogramto.java8.dates.timestamp;

import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.time.format.DateTimeFormatter;

public class CurrentTimestampExample6 {

	public static void main(String[] args) {

		ZoneId zoneId = ZoneId.systemDefault();
		ZonedDateTime localDateTime = ZonedDateTime.now(zoneId);

		DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss SSS");

		String timestamp = formatter.format(localDateTime);

		System.out.println("timestamp now : " + timestamp);
	}
}

Output:

timestamp now : 2021-11-22 20:16:18 416

9. Conclusion

In this article, we've seen the different 7 ways to get the timestamp in java.

GitHub

LocalDateTime

ZonedDateTime

Instant

Java 8 Date Time API

Java 8 date time examples