OpenVPN Client-Server - Disconnect clients after some time

[Rafael Santos 92]

Hello everyone!

I need some assistance.
I just started to deploy OpenVPN client-Server. Everything went OK and working. Theres just one thing that I didnt managed to make: how to disconnect clients after x time.
I tried the following (both sides), but didnt worked.:
reneg-sec 60
auth-nocache
inactive 60
ping 10
ping-exit 60

Can someone help me?

Thanks in advance.