timedatectl set-timezone Europe/Zurich
timedatectl
===== NTP client =====
vi /etc/systemd/timesyncd.conf
[Time]
NTP=ntp.fortier-family.com
timedatectl set-ntp true
timedatectl status
systemctl restart systemd-timesyncd
timedatectl show-timesync
===== Old way =====
apt install ntpdate
ntpdate pool.ntp.org