Maybe you have realized that when you deploy a compute instance in your favourite cloud environment that the “hardware” clock is set to UTC - which is the coordinated universal time. And that of course totally makes sense, since your cloud provider is operating a global business. That also isn’t a problem if you handle your times and dates in your Oracle database application properly with a timezone component. For this you can save time related data in the TIMESTAMP WITH TIME ZONE datatype. So you can easily at any time present the value in the desired timezone value.
The Good Recently I discovered a critical issue when installing a new Oracle cluster for a customer on Oracle Linux systems. The hardware are shiny new blade systems and I started with the latest and greatest software components which are certified for the Oracle Enterprise Edition and Real Application Cluster. Of course the OS would be Oracle Linux 8.7 with the famous Unbreakable Enterprise Kernel which is at version 7 since this year. In April 2023 Oracle relased the release update 1 which of course brings some enhancements and fixes. Business as usual as you would think.