[Unit]
Description=Run firewalld direct rules generator

[Timer]
OnCalendar=
OnCalendar=4,5,6:00,15,30,45 Europe/Berlin
OnCalendar=1,10,14,18,22:00 Europe/Berlin
OnBootSec=5min
RandomizedDelaySec=2min
Persistent=true

[Install]
WantedBy=timers.target