Any VPN Scheduler

Is there any way to connect/disconnect a vpn connection at a scheduled time? Currently I have VPN Manager from @Zomboided which works fine with openvpn and addon filtering. I need to start vpn connection to a private location before some downloading starts every night.

I also saw that I can trigger a connect/disconnect using vpn manager api which might work in my case, but don't know about any add-on which can schedule to run the script. Any ideas?

My Setup.
I am runing libreelec 7 on rpi3.

if zomboided is reading this, any plan to add such feature to your addon? I believe it is pretty easy for someone with linux skills, which I definitely not have.

Quote from escalade

Yes there is, crontab.

Thanks. That works fine. Wish the addon had a fix of crashing & restarting kodi when you try to exit GUI. Still after the job is created it works as expected.