Ntpdate

The ntpdate tool can be used to obtain the time from an Internet Time Server:

ntpdate -b ntp.blueyonder.co.uk

Using the cron

To configure the system to synchronize the clock with an Internet Time Server, every morning add the following entry to the /etc/crontab configuration file:

#minute hour dom mon day of week username  command
57      3    *   *   *           root      /usr/sbin/ntpdate ntp.blueyonder.co.uk

Public Internet Time Servers

uk.pool.ntp.org (This points to a random UK based time server)

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