Liferay logs Timezone

Issue

• How do change the timezone displayed in the Liferay log files without changing the JVM time zone?

Environment

• Liferay DXP 7.4 [All updates]
• Liferay Quarterly Release

Resolution

• Get a copy of the portal-log4j.xml file by extracting it from the portal-impl.jarfrom [Liferay_HOME]\[Tomcat_HOME]\webapps\ROOT\WEB-INF\shielded-container-lib\portal-impl.jar\META-INF\
• Rename the copy of the portal-log4j.xml file to portal-log4j-ext.xml
• Find the below property in portal-log4j-ext.xml
  

  <Layout pattern="%d{yyyy-MM-dd HH:mm:ss.SSS} %-5p [%t][%c{1}:%L] %m%n" type="PatternLayout"/> 

• Add Timezone as like below:
  

  <Layout pattern="%d{yyyy-MM-dd HH:mm:ss.SSS}(TimeZone} %-5p [%t][%c{1}:%L] %m%n" type="PatternLayout"/> 

• Find the required values for TIME ZONE at http://en.wikipedia.org/wiki/List_of_zoneinfo_timezones.
• Place the modified portal-log4j-ext.xml file at [Liferay_HOME]/[Tomcat_HOME]/webapps/ROOT/WEB-INF/classes/META-INF
• Restart the portal.
  

Additional Information

• Here is a sample snapshot of the modified properties for the IST timezone:
  
• Changing-the-Log-Time-Zone-Without-Changing-the-JVM-Time-Zone
• Issues-With-Setting-Time-Zone-Settings-on-the-JVM-Level
• How-to-configure-the-displayed-time-zones
• How-to-setup-a-timezone-on-DXP