Here is a sample of a CSV format of my data:
Time,TempOut,TempIn,HumOut,HumIn,Baro,Rain,Rate,Wind,WindDir,Gust,GustDir
2020-03-26 10:20:00,56.3,71.8,36.0,31.0,29.742,0.00,-327.68,10.0,270.0,22.0,
2020-03-26 10:30:00,56.8,70.2,35.0,29.0,29.739,0.00,-327.68,12.0,270.0,23.0,
2020-03-26 10:40:00,57.1,69.1,34.0,28.0,29.739,0.00,-327.68,12.0,247.5,22.0,
2020-03-26 10:50:00,57.4,69.0,33.0,27.0,29.742,0.00,-327.68,11.0,247.5,21.0,
2020-03-26 11:00:00,57.5,68.5,33.0,27.0,29.736,0.00,-327.68,13.0,247.5,23.0,
My belief is that this is Local Time. There is no GMT offset nor timezone indicator. These are the first records that I captured at this particular location and I'm pretty sure I started this station around 10 AM and not 3 AM local (if the value shown were UTC). Maybe others could confirm the WeatherLink application behavior. This data came from a Davis Weather Monitor II. I hope this helps.
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