Unable to update Daylight Saving Time (DST) in Applications Manager
Issue: The server System Time present in the bottom left corner of the Applications Manager UI does not display the Daylight Saving Time (DST) difference. It has a 1-hour time difference from the actual time.
Reason: The Daylight Saving Time (DST) changes that happen across various regions of the world need to be updated in Applications Manager Java's time zone database. Currently, Applications Manager does not offer an auto-update option for this change. So the issue remains until the time zone database is updated manually.
Updating the JRE tzdata to the latest version will incorporate the most recent time changes for each respective time zone, thereby resolving the time difference issue.
Solution:
For version 16430 and above
- Download the ZIUpdater tool from this link and extract the file to the AppManager16\working\jre\bin folder.
- Download the latest timezone database and move it to the AppManager16\working\jre\bin folder.
- Run the tool by executing the command java -jar ziupdater-1.1.1.1.jar -1 file://<path to the tzdata-latest.tar.gz>
- Once the JRE tzdata has been updated to the latest version, the following message will be displayed:
For versions below 16430
Follow the steps given below to download the file:
- Download the zip from this link.
- Extract the zip under the <AppManager_Home>\ folder (Enter 'Yes' to replace all the files during the extraction).
- After the extraction, make sure the jre/bin folder has the tzupdater and tzdata-latest.tar files in it.
Update the time in the JAVA time zone database:
- Stop the Applications Manager service. Open Command Prompt with Administrator Privileges from the \AppManager16\working\jre\bin directory and execute the command given below:
java -jar tzupdater.jar -l "file:///<AppManager_Home>/working/jre/bin/tzdata-latest.tar.gz"-v
Replace <AppManager_Home> with the appropriate Applications Manager folder path.Example:Windows - C:/ManageEngine/AppManager16/working/jre/bin> java -jar tzupdater.jar -l "file:///C:/ManageEngine/AppManager16/working/jre/bin/tzdata-latest.tar.gz"-v
Linux - /opt/ManageEngine/AppManager16/working/jre/bin>./java -jar tzupdater.jar -l "file:////opt/ManageEngine/AppManager16/working/jre/bin/tzdata-latest.tar.gz"-v
- Once the command has been executed successfully, a 'Validation complete. JRE updated to version: tzdata2023c' message will be displayed.
- Start the Applications Manager service and refresh the browser cache. Now check the time zone and the time displayed in Applications Manager (About tab, Alarm time, Availability timeline, reports time, etc.). Please check the details in an incognito window as well.
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