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Definições:~/config/settings/networktime settings - All the settings concerning synchronizing the time through the network
~/config/settings/RTC_time_settings - The setting of the hardware clock (local or GMT)
~/config/settings/Time settings - The time zone setting
~/config/settings/Time_preflet_window - The panel's window position etc.

The panel of the Time preferences is split into four tabs:

index Date and time


No lado esquerdo, podemos definir o dia do mês simplesmente clicando nele no calendário. Mude o mês e o ano clicando nele e usando as setas para baixo / para cima à direita ou as teclas de cursor no teclado.

Similarly, you set the time at the right. Or simply move the hands of the clock directly.

index Time zone


Simply find and choose your country in the list of continents and press Set time zone. For countries with more than one time zone you'll have to expand one level deeper.
To the right you'll find the time of the currently set time zone and the preview time of the the zone you've chosen.

Also on the right side is a setting for the hardware clock of your computer. There are two modes for the clock:

Hora localto display your local time, which you normally want if you dual-boot into Windows.
GMTto display Greenwich Mean Time, which is the UNIX compatible setting.

index Network time

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 achieved from the command line (or a script) as well:

Time --update

index Clock


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.