Systemd over NTP

Ever wondered how to setup an NTP client controlled by systemd? Here are some short steps.
Symptom:

Mar 26 19:24:43 lokalhost systemd-timesyncd[403]: Timed out waiting for reply from 118.189.177.157:123 (0.debian.pool.ntp.org).
Mar 26 19:24:54 lokalhost systemd-timesyncd[403]: Timed out waiting for reply from 103.47.76.177:123 (0.debian.pool.ntp.org).
Mar 26 19:25:04 lokalhost systemd-timesyncd[403]: Timed out waiting for reply from 128.199.123.83:123 (0.debian.pool.ntp.org).
Mar 26 19:25:14 lokalhost systemd-timesyncd[403]: Timed out waiting for reply from 139.59.219.101:123 (0.debian.pool.ntp.org).
Mar 26 19:25:24 lokalhost systemd-timesyncd[403]: Timed out waiting for reply from 202.156.0.34:123 (1.debian.pool.ntp.org).
Mar 26 19:25:35 lokalhost systemd-timesyncd[403]: Timed out waiting for reply from 128.199.87.57:123 (1.debian.pool.ntp.org).
Mar 26 19:25:45 lokalhost systemd-timesyncd[403]: Timed out waiting for reply from 128.199.169.185:123 (1.debian.pool.ntp.org).
Mar 26 19:25:55 lokalhost systemd-timesyncd[403]: Timed out waiting for reply from 103.23.208.175:123 (1.debian.pool.ntp.org).
Mar 26 19:26:05 lokalhost systemd-timesyncd[403]: Timed out waiting for reply from 172.104.55.191:123 (2.debian.pool.ntp.org).

Solution:
1. nano /etc/systemd/timesyncd.conf
2. Set your NTP server, e.g.: NTP=172.16.36.67
3. systemctl restart systemd-timesyncd.service 
4. timedatectl set-ntp true
5. Check with: timedatectl status