In this article, we will learn how to convert java.util.Date to LocalDateTime in different ways
java.util.Date to LocalDateTime conversion :
There are many ways to convert java.util.Date to LocalDateTime –
- Using java.sql.Date and toLocalDateTime() method
- Using Timestamp and toLocalDateTime() method
- Using LocalDateTime.parse() method
- Using GregorianCalendar and ZonedDateTime
- Using Instant and ZonedDateTime
- Using Instant.ofEpochMilli() method and ZonedDateTime
DifferentWaysToConvertJavaUtilDateToLocalDateTime.java
package in.bench.resources.java8.localdatetime.examples;
import java.sql.Timestamp;
import java.time.Instant;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.time.format.DateTimeFormatter;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
public class DifferentWaysToConvertJavaUtilDateToLocalDateTime {
public static void main(String[] args) {
// get current date
Date date = new Date();
System.out.println("Current Date is = " + date);
// print to console
System.out.println("\njava.util.Date to java.time.LocalDateTime conversion :-");
System.out.println("-----------------------------------------------------");
// 1. Using java.sql.Date & Timestamp & toLocalDateTime() method
java.sql.Date sqlDate = new java.sql.Date(new java.util.Date().getTime());
Timestamp timestamp1 = new java.sql.Timestamp(sqlDate.getTime());
LocalDateTime localDateTime1 = timestamp1.toLocalDateTime();
System.out.println("1. Using java.sql.Date & toLocalDateTime() method :- \n"
+ localDateTime1);
// 2. Using Timestamp & toLocalDateTime() method
Date date2 = new Date();
Timestamp timestamp2 = new Timestamp(date2.getTime());
LocalDateTime localDateTime2 = timestamp2.toLocalDateTime();
System.out.println("\n2. Using Timestamp & toLocalDateTime() method :- \n"
+ localDateTime2);
// 3. Using LocalDateTime.parse() method
Date date3 = new Date();
LocalDateTime localDateTime3 = LocalDateTime.parse(
date3.toString(),
DateTimeFormatter.ofPattern("EEE MMM dd HH:mm:ss zzz yyyy")
);
System.out.println("\n3. Using LocalDateTime.parse() method :- \n"
+ localDateTime3);
// 4. Using GregorianCalendar and ZonedDateTime
Date date4 = new Date();
GregorianCalendar gregorianCalendar = (GregorianCalendar) Calendar.getInstance();
gregorianCalendar.setTime(date4);
ZonedDateTime zonedDateTime = gregorianCalendar.toZonedDateTime();
LocalDateTime localDateTime4 = zonedDateTime.toLocalDateTime();
System.out.println("\n4. Using GregorianCalendar and ZonedDateTime :- \n"
+ localDateTime4);
// 5. Using Instant & ZonedDateTime
Date date5 = new Date();
Instant instant1 = date5.toInstant();
ZonedDateTime zonedDateTime5 = instant1.atZone(ZoneId.systemDefault());
LocalDateTime localDateTime5 = zonedDateTime5.toLocalDateTime();
System.out.println("\n5. Using Instant & ZonedDateTime :- \n"
+ localDateTime5);
// 6. Using Instant & ZonedDateTime
Date date6 = new Date();
Instant instant2 = Instant.ofEpochMilli(date6.getTime());
ZonedDateTime zonedDateTime6 = instant2.atZone(ZoneId.systemDefault());
LocalDateTime localDateTime6 = zonedDateTime6.toLocalDateTime();
System.out.print("\n6. Using Instant.ofEpochMilli() method & ZonedDateTime :- \n"
+ localDateTime6);
}
}
Output:
Current Date is = Tue Aug 09 19:58:49 IST 2022
java.util.Date to java.time.LocalDateTime conversion :-
-----------------------------------------------------
1. Using java.sql.Date & toLocalDateTime() method :-
2022-08-09T19:58:49.142
2. Using Timestamp & toLocalDateTime() method :-
2022-08-09T19:58:49.146
3. Using LocalDateTime.parse() method :-
2022-08-09T19:58:49
4. Using GregorianCalendar and ZonedDateTime :-
2022-08-09T19:58:49.292
5. Using Instant & ZonedDateTime :-
2022-08-09T19:58:49.307
6. Using Instant.ofEpochMilli() method & ZonedDateTime :-
2022-08-09T19:58:49.308
Related Articles:
- Java 8 – LocalDateTime with method details and examples
- Java 8 – How to get Date and Time fields from LocalDateTime ?
- Java 8 – How to form LocalDateTime passing Date and Time fields ?
- Java 8 – How to form LocalDateTime passing LocalDate and LocalTime ?
- Java 8 – How to form LocalDateTime passing Instant and ZoneId ?
- Java 8 – How to form LocalDateTime passing Second/Nano and ZoneOffset ?
- Java 8 – How to parse LocalDateTime in String form ?
- Java 8 – How to convert String to LocalDateTime ?
- Java 8 – How to convert LocalDateTime to String ?
- Java 8 – How to convert LocalDateTime in different formats ?
- Java 8 – How to convert LocalDateTime in different Format Style ?
- Java 8 – How to convert LocalDateTime to ZonedDateTime ?
- Java 8 – How to convert LocalDateTime to an OffsetDateTime ?
- Java 8 – How to convert LocalDateTime to an Instant ?
- Java 8 – How to extract LocalDateTime and LocalTime from LocalDateTime ?
- Java 8 – How to convert LocalDateTime to java.util.Date and vice-versa ?
- Java 8 – How to convert LocalDateTime to java.sql.Timestamp and vice-versa ?
- Java 8 – How to convert LocalDateTime to Calendar and vice-versa ?
- Java 8 – How to convert LocalDateTime to GregorianCalendar and vice-versa ?
- Java 8 – How to convert LocalDateTime to XMLGregorianCalendar and vice-versa ?
- Java 8 – How to convert java.util.Date to LocalDateTime in different ways ?
- Java 8 – How to add Date and Time fields to LocalDateTime ?
- Java 8 – How to subtract Date and Time fields from LocalDateTime ?
- Java 8 – How to alter Date and Time fields of LocalDateTime ?
- Java 8 – How to check whether a LocalDateTime is Before another LocalDateTime ?
- Java 8 – How to check whether a LocalDateTime is After another LocalDateTime ?
- Java 8 – How to compare two LocalDateTime instances ?
- Java 8 – How to find difference between two LocalDateTime using Period & Duration ?
- Java 8 – What are all the Temporal Fields supported by LocalDateTime ?
- Java 8 – What are all the Temporal Units supported by LocalDateTime ?
- More Java 8 Date/Time API examples
References:
- https://docs.oracle.com/javase/8/docs/api/java/time/LocalDateTime.html
- https://docs.oracle.com/javase/8/docs/api/java/time/Instant.html
- https://docs.oracle.com/javase/8/docs/api/java/time/ZonedDateTime.html
- https://docs.oracle.com/javase/8/docs/api/java/time/ZoneId.html
- https://docs.oracle.com/javase/8/docs/api/java/sql/Date.html
- https://docs.oracle.com/javase/8/docs/api/java/util/Date.html
- https://docs.oracle.com/javase/8/docs/api/java/util/Calendar.html
- https://docs.oracle.com/javase/8/docs/api/java/util/GregorianCalendar.html
- https://docs.oracle.com/javase/8/docs/api/java/sql/Timestamp.html
Happy Coding !!
Happy Learning !!