“Yesterday” quick range in UTC dashboard not matching expected time window

Hi all,

I’m working with ADX in Grafana (dashboard timezone = UTC). For most quick ranges (Last 24h, Today, This week, etc.) things work fine.

But when I select Yesterday, the $__timeFrom() / $__timeTo() values seem to behave differently, and after applying my small adjustment logic (−2h shift to align UTC → CEST), the panel shows the wrong distance values.
• All other ranges align correctly after my shift.
• Only Yesterday gives wrong results, as if the end time is being treated differently (midnight vs. 23:59:59).

Question:
Is there something special about how Grafana computes the Yesterday quick range in UTC mode?

Thanks!