Note 9 Clock App - change timezone to no timezone

I have a note 9. I used clock app for my alarms. I can not change the timezone from central. I live somewhere we do not have a timezone. We do not change our clocks. No matter what I do, the wrong time shows at the top of my screen. My service provider displays the correct time below that, but this messes with my alarms and locks screens. HOW do I fix this? I have tried several "fixes" for android clock app but it would seem my note 9 is different as I can't find instructions that will work with my phone.