$__timeGroup is not working as expected

[kdangocergy]

I am running some queries to trino via Grafana but got unexpected result. The timeGroup showed 2-hour delay compared to the original column (acquisition_time). I do not think it is an issue from Trino because it showed what I had expected in the acquisition_time. I tried different intervals but the issue remains.
Thank you.

Grafana: 12.0.2
Trino: 475