Next, the installation program presents a dialog to help you configure your system's time zone (see Figure 62).
If you wish to set the hardware (CMOS) clock to GMT (Greenwich Mean Time, also known as UTC, or Coordinated Universal Time), select Hardware clock set to GMT. Setting it to GMT means your system will properly handle daylight-saving time, if your time zone uses it. Most networks use GMT.
Please Note: If your computer runs another operating system from time to time, setting the clock to GMT may cause the other operating system to display the incorrect time. Also keep in mind that if more than one operating system is allowed to automatically change the time to compensate for daylight-saving time, it is likely that the time will be improperly set.
Select the time zone your system will be operating in froom the list, and press [Enter].
If you wish to change your time zone configuration after you have booted your Red Hat Linux system, you may use the /usr/sbin/timeconfig command.