Posted on March 18, 2025 by

How to map the Oracle TIMESTAMP WITH TIME ZONE with JPA

Introduction In this article, I’m going to explain how to map the Oracle TIMESTAMP WITH TIME ZONE with JPA and Hibernate. While the DATE and TIMESTAMP column types are suitable for mapping the LocalDateTime, the TIMESTAMP WITH TIME ZONE column type allows us to map both the ZonedDateTime and OffsetDateTime.

Posted on January 12, 2022 by

The best way to handle time zones in a Java web application

Introduction In this article, I’m going to show you what is the best way to handle time zones when developing a Java web application. I applied all these best practices while developing RevoGain, a web application that allows you to calculate the gains you realized while trading stocks, commodities, or crypto using Revolut.

Posted on March 14, 2017 by

How to store date, time, and timestamps in UTC time zone with JDBC and Hibernate

Introduction Dealing with time zones is always challenging. As a rule of thumb, it’s much easier if all date/time values are stored in the UTC format, and, if necessary, dealing with time zone conversions in the UI only. This article is going to demonstrate how you can accomplish this task with JDBC and the awesome hibernate.jdbc.time_zone configuration property.

Posted on November 17, 2014 by

A beginner’s guide to Java time zone handling

Basic time notions Most web applications have to support different time-zones and properly handling time-zones is no way easy. To make matters worse, you have to make sure that timestamps are consistent across various programming languages (e.g. JavaScript on the front-end, Java in the middle-ware and MongoDB as the data repository). This post aims to explain the basic notions of absolute and relative time. Epoch An epoch is a an absolute time reference. Most programming languages (e.g Java, JavaScript, Python) use the Unix epoch (Midnight 1 January 1970) when expressing a given… Read More

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