Custom timezone for specifics VMs

Hi,

I’m wondering what is the proper way of setting up a timezone different than the dom0 timezone in a VM.

I had very few success using the timezone feature from qvm-features and so far I’m overwriting the timezone directly on boot from rc.local. This feels unright, I use those VMs for network services and theoretically app traffic with the wrong timezone could leak before rc.local runs.

What is the proper way if any?

Thanks !