The System section of the System Preferences contains panes for configuring the accounts on your Mac, updating software, choosing a start-up disk, and many more system-wide options. For information about the Users & Groups and Parental Controls preferences, see Chapter 4. Time Machine is covered in depth in Chapter 14.
Date & Time
Adjust the Mac time settings with the Date & Time preferences pane, shown in Figure 3.19.
The tabs provide the following options:
Date & Time. Select the Set date and time automatically check box to have your Mac get the correct date and time from an Internet time server, and then select a time server from the list provided. You can choose to make manual settings by deselecting this option and adjusting the date and time to your preference.
3.19 Set the date and time using the Date & Time preferences pane.
Time Zone. Select the time zone you are in by choosing an area on the map.
Clock. Decide whether and how to display the date and time in the menu bar, and allow your Mac to speak the time to you at the specified intervals.