A quick guide to get the current timestamp in java in different ways.
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.
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