Creating a systemd timer as a user on Debian 9.9

To set up a simple systemd timer as a user on Debian 9.9, here are the following steps to make it work.

Systemd version :

systemctl --version
systemd 232

As a user, both the .service unit and .timer unit must be located in $HOME/.config/systemd/user.
If this folder does not exist, create it :

mkdir -p $HOME/.config/systemd/user

If both the .service and .timer files are named as test, it must be enabled and started :

systemctl --user enable test

systemctl --user start test

The expected output should be found using journalctl :

journalctl -f

References :

systemd.time(7) manpage

Using systemd as a user