时间

时间首选项的面板分为四个标签页：

日期与时间

在左边，您可以在日历中进行日期的设置。同时也可以使用右端的上下箭头或者键盘中的光标键来进行月份和年代的修改。

类似的，您可以在右侧进行时间设置。或者直接移动时钟的指针。

时区

简单的从弹出菜单和城市列表中找出和选中您所在的位置，然后按下 Set Time Zone 来设置本地时区。对于跨多个时区的国家，您必须展开一个更深的层次。
在右侧，您可以看到当前设置时区的时间和您所选择的时区的预览时间。

在右侧是电脑的硬件时钟设置。对于时钟有两种模式：

网络时间

Setting date and time manually is pretty much obsolete if you're connected to the internet. There are public servers that supply very exact time signals.

With the +/- buttons you can add/remove NTP-servers to/from the list.

The checkboxes below tell the system to Try all servers when synchronizing, not only the currently selected one, and to Synchronize at boot, so you can be sure you're clock always shows the correct time.

You can Reset to default server list if you accidentally deleted working NTP-servers and Synchronize your clock manually. The synchronization can be achived from the command line (or a script) as well:

Time --update

时钟

The last tab shows the options of the clock displayed in the Deskbar. You can disable the clock there completely with the top checkbox. The rest are equally self-explanatory.

In every tab is a button Revert that brings back the settings that were active when you started the Time preferences.