Does the sim use DST?

[Vibstronium]

Your UTC times should be correct but local time is sometimes gonna be wrong currently. ;_; It’s notoriously buggy about this; see eg:

Sim time off by one hour / Timezones incorrect

Brief description of the issue: After selecting a time of day in the world map, the time of day loaded into the sim is approximately 1 hour too early, e.g. selecting 9AM loads the simulator set to 8AM. Inconsistent appearance, unknown trigger mechanism. Provide Screenshot(s)/video(s) of the issue encountered: (None available) Detail steps to reproduce the issue encountered: FLIGHT CONDITIONS: *Multiplayer settings: All players *Air traffic settings: AI *Weather & Time settings: Prese…

https://forums.flightsimulator.com/t/live-time-is-1-hour-earlier-than-real-time-in-hawaii/332695