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Oracle WebLogic Server (WLS), Time Zones, and DayLight Saving Time (DST) Changes (Doc ID 1370083.1)

Last updated on JULY 06, 2020

Applies to:

Oracle WebLogic Server - Version 8.1 and later
Information in this document applies to any platform.
***Checked for relevance on 4-May-2015***


A number of concerns are raised regarding the behavior of any application using WebLogic Server (WLS) in relation to Daylight Saving Time (DST) changes. These concerns are not answered by the documentation available. The purpose of this note is to fill the gap between the concerns and the available sources of documentation.

Questions and Answers

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In this Document
Questions and Answers
 How does WLS retrieve time zone and DST information?
 How do I check that the time zone and DST changes information are correct on a system?
 How does WLS react when DST change happens?
 How will the application lying on top of WLS react when DST changes happen?
 How to make the OS and JVM/WLS agree on the time zone information?
 Some statements upon the expectation of WLS regarding continuity of time

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