My Kibana was configured to use Browser's default timezone, and I created a few visualizations.
Later I change my timezone to UTC. It didn't reflect on the existing visualization. I got a query from my team, that data is not exactly valid.
Later when debugging I verified from the network call, that timezone being sent is the one which was Browser's TZ at the time of creating visualization.
Is it something expected?
^ Basis on this it looks like a bug.