I've recently find out that there are some commands that are available since windows 2000 (afaik) but some references are pointing to the availability since windows 95 (http://www.computerhope.com/nethlp.htm). I've never used them but they are quite useful sometimes when you need to to synch several computers in batch, expecially within an active directory. UDP port 123 (SNTP) - TCP port 37 (TIME) I've added the nearest server. net time /setsntp:"ntp.prato.linux.it" (we can add other servers separated by a space) on linux i've always used this command sntp -a ntp.prato.linux.it to adjust the time from a server and/or editing /etc/ntp.conf with the simple string server ntp.prato.linux.it Lists of the servers are available on ntp.org I'm unable to use the ntp pools, they just timeout (?). https://support.ntp.org/bin/view/Servers/StratumOneTimeServers https://support.ntp.org/bin/view/Servers/StratumTwoTimeServers https://support.ntp.org...