Red Hat Enterprise Linux 4: System Administration Guide
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Chapter 29. Date and Time Configuration

The Time and Date Properties Tool allows the user to change the system date and time, to configure the time zone used by the system, and to setup the Network Time Protocol (NTP) daemon to synchronize the system clock with a time server.

You must be running the X Window System and have root privileges to use the tool. There are three ways to start the application:

From the desktop, go to Applications (the main menu on the panel) => System Settings => Date & Time
From the desktop, right-click on the time in the toolbar and select Adjust Date and Time.
Type the command system-config-date, system-config-time, or dateconfig at a shell prompt (for example, in an XTerm or a GNOME terminal).

29.1. Time and Date Properties

As shown in Figure 29-1, the first tabbed window that appears is for configuring the system date and time.

Figure 29-1. Time and Date Properties

To change the date, use the arrows to the left and right of the month to change the month, use the arrows to the left and right of the year to change the year, and click on the day of the week to change the day of the week. Changes take place after the OK button is clicked.

To change the time, use the up and down arrow buttons beside the Hour, Minute, and Second in the Time section. Changes take place until after the OK button is clicked.

Clicking the OK button applies any changes made to the date and time, the NTP daemon settings, and the time zone settings. It also exits the program.

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