In this article, we will learn how to convert java.util.Date to an OffsetDateTime in different ways in Java 1.8 version
Date to OffsetDateTime conversion :
There are many ways to convert java.util.Date to an OffsetDateTime –
- Using java.sql.Date & Timestamp & atOffset() method
- Using Timestamp & atOffset() method
- Using LocalDateTime.parse() and atZone() & toOffsetDateTime() methods
- Using GregorianCalendar and toZonedDateTime() & toOffsetDateTime() methods
- Using Instant & atOffset() method
- Using Instant.ofEpochMilli() & atOffset() methods
DifferentWaysToConvertJavaUtilDateToOffsetDateTime.java
package in.bench.resources.java8.offsetdatetime.examples;
import java.sql.Timestamp;
import java.time.Instant;
import java.time.LocalDateTime;
import java.time.OffsetDateTime;
import java.time.ZoneId;
import java.time.ZoneOffset;
import java.time.ZonedDateTime;
import java.time.format.DateTimeFormatter;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
public class DifferentWaysToConvertJavaUtilDateToOffsetDateTime {
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.OffsetDateTime conversion :-");
System.out.println("-----------------------------------------------------");
// 1. Using java.sql.Date & Timestamp & atOffset() 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();
ZoneOffset zoneOffset1 = ZoneOffset.of("+05:30");
OffsetDateTime offsetDateTime1 = localDateTime1.atOffset(zoneOffset1);
System.out.println("1. Using java.sql.Date & Timestamp & atOffset() method :- \n"
+ offsetDateTime1);
// 2. Using Timestamp & atOffset() method
Date date2 = new Date();
Timestamp timestamp2 = new Timestamp(date2.getTime());
LocalDateTime localDateTime2 = timestamp2.toLocalDateTime();
ZoneOffset zoneOffset2 = ZoneOffset.of("+05:30");
OffsetDateTime offsetDateTime2 = localDateTime2.atOffset(zoneOffset2);
System.out.println("\n2. Using Timestamp & atOffset() method :- \n"
+ offsetDateTime2);
// 3. Using LocalDateTime.parse() and atZone() & toOffsetDateTime() methods
Date date3 = new Date();
LocalDateTime localDateTime3 = LocalDateTime.parse(
date3.toString(),
DateTimeFormatter.ofPattern("EEE MMM dd HH:mm:ss zzz yyyy")
);
ZonedDateTime zonedDateTime3 = localDateTime3.atZone(ZoneId.systemDefault());
OffsetDateTime offsetDateTime3 = zonedDateTime3.toOffsetDateTime();
System.out.println("\n3. Using LocalDateTime.parse() and"
+ " atZone() & toOffsetDateTime() methods :- \n"
+ offsetDateTime3);
// 4. Using GregorianCalendar and toZonedDateTime() & toOffsetDateTime() methods
Date date4 = new Date();
GregorianCalendar gregorianCalendar = (GregorianCalendar) Calendar.getInstance();
gregorianCalendar.setTime(date4);
OffsetDateTime offsetDateTime4 = gregorianCalendar // GregorianCalendar
.toZonedDateTime() // ZonedDateTime
.toOffsetDateTime(); // OffsetDateTime
System.out.println("\n4. Using GregorianCalendar and"
+ " toZonedDateTime() & toOffsetDateTime() methods :- \n"
+ offsetDateTime4);
// 5. Using Instant & atOffset() method
Date date5 = new Date();
Instant instant5 = date5.toInstant();
ZoneOffset zoneOffset5 = ZoneOffset.of("+05:30");
OffsetDateTime offsetDateTime5 = instant5.atOffset(zoneOffset5);
System.out.println("\n5. Using Instant & atOffset() method :- \n"
+ offsetDateTime5);
// 6. Using Instant.ofEpochMilli() & atOffset() methods
Date date6 = new Date();
Instant instant6 = Instant.ofEpochMilli(date6.getTime());
ZoneOffset zoneOffset6 = ZoneOffset.of("+05:30");
OffsetDateTime offsetDateTime6 = instant6.atOffset(zoneOffset6);
System.out.print("\n6. Using Instant.ofEpochMilli() & atOffset() methods :- \n"
+ offsetDateTime6);
}
}
Output:
Current Date is = Wed Aug 17 10:22:54 IST 2022
java.util.Date to java.time.OffsetDateTime conversion :-
-----------------------------------------------------
1. Using java.sql.Date & Timestamp & atOffset() method :-
2022-08-17T10:22:54.518+05:30
2. Using Timestamp & atOffset() method :-
2022-08-17T10:22:54.522+05:30
3. Using LocalDateTime.parse() and atZone() & toOffsetDateTime() methods :-
2022-08-17T10:22:54+05:30
4. Using GregorianCalendar and toZonedDateTime() & toOffsetDateTime() methods :-
2022-08-17T10:22:54.754+05:30
5. Using Instant & atOffset() method :-
2022-08-17T10:22:54.773+05:30
6. Using Instant.ofEpochMilli() & atOffset() methods :-
2022-08-17T10:22:54.773+05:30
Related Articles:
- Java 8 – OffsetDateTime with method details and examples
- Java 8 – How to get Date, Time and Offset fields from OffsetDateTime ?
- Java 8 – How to form OffsetDateTime passing Date, Time and Offset fields ?
- Java 8 – How to form OffsetDateTime passing LocalDate, LocalTime and ZoneOffset ?
- Java 8 – How to form OffsetDateTime passing LocalDateTime and ZoneOffset ?
- Java 8 – How to form OffsetDateTime passing Instant and ZoneId ?
- Java 8 – How to parse OffsetDateTime in String form ?
- Java 8 – How to convert String to OffsetDateTime ?
- Java 8 – How to convert ZonedDateTime to String ?
- Java 8 – How to convert OffsetDateTime in different formats ?
- Java 8 – How to convert OffsetDateTime in different Format Style ?
- Java 8 – How to convert OffsetDateTime to LocalDateTime ?
- Java 8 – How to convert OffsetDateTime to ZonedDateTime ?
- Java 8 – How to convert OffsetDateTime to an Instant ?
- Java 8 – How to extract LocalDate and LocalTime and LocalDateTime from OffsetDateTime ?
- Java 8 – How to extract OffsetTime from OffsetDateTime ?
- Java 8 – How to convert OffsetDateTime to number of Seconds ?
- Java 8 – How to convert OffsetDateTime to java.util.Date and vice-versa ?
- Java 8 – How to convert OffsetDateTime to java.sql.Timestamp and vice-versa ?
- Java 8 – How to convert OffsetDateTime to Calendar and vice-versa ?
- Java 8 – How to convert OffsetDateTime to GregorianCalendar and vice-versa ?
- Java 8 – How to convert OffsetDateTime to XMLGregorianCalendar and vice-versa ?
- Java 8 – How to convert java.util.Date to an OffsetDateTime in different ways ?
- Java 8 – How to add Date and Time fields to OffsetDateTime ?
- Java 8 – How to subtract Date and Time fields from OffsetDateTime ?
- Java 8 – How to alter Date, Time and Offset fields of OffsetDateTime ?
- Java 8 – How to check whether an OffsetDateTime is Before another OffsetDateTime ?
- Java 8 – How to check whether an OffsetDateTime is After another OffsetDateTime ?
- Java 8 – How to compare two OffsetDateTime instances ?
- Java 8 – How to find difference between two OffsetDateTime using Period & Duration ?
- Java 9 – Find difference between two OffsetDateTime instances upto nanosecond precision ?
- More Java 8 Date/Time API examples
References:
- https://docs.oracle.com/javase/8/docs/api/java/time/OffsetDateTime.html
- 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 !!