Sunlight Alignment Tweak - Better Dawn and Dusk Mod
MODAligns the exterior world lighting with the sun and moon and allows the game to cast shadows at shallower angles.
In fact the main reason there is a script to reduce the shadow intensity at dawn and dusk is to remove visual glitches where the sun casts shadows from objects while it is behind a hill or mountain range.
This version only includes the alignment tweak and does not require any DLC, MCM or F4SE.