Set the time zone (QTIMZON) system value

View this topic to learn the different ways to set the time zone system value.

Three different methods can be used to set the system value. You can set the system value before upgrading, during an initial program load (IPL), or after the installation using iSeries™ Navigator. The method that you use depends on whether you are upgrading to a new release, are performing an IPL, or already have i5/OS™ installed.

Within the realm of time management, you can specify a time zone for your system to use. There are three different ways to specify which time zone your system uses. You can set your time zone properties before an i5/OS software upgrade, during an attended IPL of the iSeries server, or after an IPL of the iSeries server using iSeries Navigator.

The method that you use depends on whether you are upgrading from a previous i5/OS release or installing the i5/OS. Otherwise, you can always work with the time zone using iSeries Navigator.

• Set the time zone before upgrading
  Use this method if you have a previous release of i5/OS installed and are upgrading to i5/OS V5R3 or later. This is the preferred method, if you have a previous release already installed, because your time zone will be set correctly as soon as you upgrade.
• Set the time zone during an attended IPL
  Use this method to set the time zone system value during an attended initial program load (IPL) of V5R3 or later. This is the preferred method if you are installing software on a new i5/OS server or partition because it ensures that the time zone will be set correctly as soon as you complete the IPL.
• Set the time zone after an IPL
  This topic describes how to change the time zone system value using iSeries Navigator. Also, use this method to ensure that the time zone is set properly if the offset from coordinated universal time (UTC) was not correct during the upgrade or install of i5/OS software.