Here are a few title options, keeping the question format and addressing the core problem: * Why Does My Java Program Run in GMT on Windows Server 2007? * How to Override the Default JVM Timezone in

Understanding JVM TimeZone Configuration

This article addresses the issue of Java Virtual Machine (JVM) time zone behavior, specifically in Java Development Kit (JDK) 1.5 on Windows Server Enterprise 2007.

Problem: Default GMT Timezone

The issue arises when a Java program defaults to GMT timezone, despite the operating system (OS) specifying a different timezone. This behavior can lead to inaccurate time-based operations.

Solution: Specifying JVM Timezone

To resolve this issue, the JVM can be instructed to use the OS-defined timezone by passing the -Duser.timezone parameter. This parameter sets the timezone for the JVM and overrides any default settings.

For example, to set the timezone to Europe/Sofia:

-Duser.timezone=Europe/Sofia

Alternatively, setting the environment variable TZ on Linux can also achieve the desired result.

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