Install NTP on your home server
sudo apt-get install ntp
Bare in mind that I’m in the UK so I’m obviously I’m going to choose NTP servers that are geographically close to me.
After reading a fair bit about configuring ntp safely, what to include and what to block. My server is now serving all the machines on my home network.
My /etc/ntp.conf now looks like this.
ntp.conf file below.