7.4.3. Date and time zone
Setting time information is usually done at installation time.
After that, it can be kept up to date using an NTP
(Network Time Protocol) client. Most Linux systems run ntpd by default:
debby:~> ps -ef | grep ntpd
ntp 24678 1 0 2002 ? 00:00:33 ntpd -U ntp
You can run ntpdate manually to set the
time, on condition that you can reach a time server. The ntpd daemon should not be running when you adjust the
time using ntpdate. Use a time server as
argument to the command:
[email protected]:~# ntpdate 10.2.5.200
26 Oct 14:35:42 ntpdate: adjust time server 10.2.5.200 offset
See your system manual and the documentation that comes with the
NTP package. Most desktop managers include tools to set the system
time, providing that you have access to the system administrator's
For setting the time zone correct, you can use tzconfig or timezone commands.
Timezone information is usually set during the installation of your
machine. Many systems have distribution-specific tools to configure
it, see your system documentation.