$ sudo apt-get install ntp ntpdate Reading package lists... Done Building dependency tree Reading state information... Done Use 'apt-get autoremove' to remove them. Suggested packages: ntp-doc The following packages will be upgraded: ntp 1 upgraded, 0 newly installed, 0 to remove and 93 not upgraded. Need to get 613 kB of archives. After this operation, 0 B of additional disk space will be used. G