hibernate + spring boot store date on UTC time zone troubles

Avdev4j :

I'm making some tests to define UTC as default time zone for my application. First of all I want my datetime values to be stored with the UTC one.

According to VLAD MIHALCEA (https://vladmihalcea.com/how-to-store-date-time-and-timestamps-in-utc-time-zone-with-jdbc-and-hibernate/) and https://moelholm.com/2016/11/09/spring-boot-controlling-timezones-with-hibernate/ I have set in my properties file:

spring.jpa.properties.hibernate.jdbc.time_zone= UTC

For testing I'm using h2 database, I've created a sample entity with all java 8 dateTime Type.

In my liquibase config they are defined like this:

<column name="instant" type="timestamp"/>
<column name="local_date" type="date"/>
<column name="local_time" type="time"/>
<column name="offset_time" type="time"/>
<column name="local_date_time" type="timestamp"/>
<column name="offset_date_time" type="timestamp"/>
<column name="zoned_date_time" type="timestamp"/>

I think I'm using the good type for every fields. It's work for all fields except for "local_time" "offset_time" which are Time sql types not timestamp.

As you can see i added this row at 8:39am (Paris GMT+2) and timestamps have the good UTC value (6:38am). BUT both "local_time" and "offset_time" have a strange value (7:39am).

I wonder why this behaviour, if some of you have an idea why my two time fields not store values correctly.

PS: version:

Hibernate: 5.2.17.Final
Spring boot: 2.0.4.RELEASE

My sample Entity use to insert data :

import javax.persistence.*;
import java.io.Serializable;
import java.time.*;
import java.util.Objects;

@Entity
@Table(name = "avdev_myData")
public class MyData implements Serializable {

    private static final long serialVersionUID = 1L;

    @Id
    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "sequenceGenerator")
    @SequenceGenerator(name = "sequenceGenerator")
    private Long id;

    @Column(name = "name")
    private String name;

    @Column(name = "instant")
    private Instant instant;

    @Column(name = "local_date")
    private LocalDate localDate;

    @Column(name = "local_time")
    private LocalTime localTime;

    @Column(name = "offset_time")
    private OffsetTime offsetTime;

    @Column(name = "local_date_time")
    private LocalDateTime localDateTime;

    @Column(name = "offset_date_time")
    private OffsetDateTime offsetDateTime;

    @Column(name = "zoned_date_time")
    private ZonedDateTime zonedDateTime;

Avdev4j :

I opened an issue in the hibernate bug tracker and had an answer of my problem.

For LocalTime the tranformation is relative to the 1st january 1970 not the day i had run the test. So the DST is not handled.

According to Vlad Mihalcea we have to use LocalDateTime instead because we know the date and of course if it's on DST period or not.

there is the whole response here: https://hibernate.atlassian.net/browse/HHH-12988?focusedCommentId=103750&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-103750

regards

hibernate + spring boot store date on UTC time zone troubles

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