Ladybug sun vs archicad sun

ladybug-tools
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Hello all,

after doing shadow analysis in ladybug and archicad, I see the deviation (~10°) between these results. I dont know which standard and algorthm that archicad uses and which one is more precise?

both use the same model (export from archicad), set up same location, north axis.

Thanks all!
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If you’re confident that you have the right location settings for the origin in your Archicad file, then I would suspect that the problem is in the daylight savings time setting. Try turning it off in Archicad to see if it will match.