Hello Massimiliano, apologies for the late response.
I understand that you have a problem with the VM timezone, and not strictly related to Wazuh, is that correct?
In that case, it seems that it is configured with a timezone +0 and you need a -3. How is that changed will depend on your operating system, but you can probably see this post that explains it
https://linuxize.com/post/how-to-set-or-change-timezone-in-linux/I hope you find this helpful!