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I would say this is the variable you want to animate in the Sequencer to simulate a timelapse of the day. With Solar Time, you can choose the hour you want to reproduce. You can pick the exact day of the year trough Month and Day. The North Offset is just a way to rotate the entire Sun and Sky system, so feel free to change it to match the north of the project. Latitude, longitude and Time zone are details you can google easily. Side note: You still have to place the ExponentialHeightFog manually if you want to get a lower hemisphere / fog effect in your scene. Said so, there’re still a bunch of settings under the hood that maybe you want to modify to get an even better result. These settings are what you need to reproduce realistic lighting, which coincides with the one of a real place in the world. Like every blueprint, the “Sun and Sky” will show you some editable variables in the Detail panel, like latitude, longitude or Solar time.
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