No, they don't
The light spell specifically states that it projects light like a torch would, and natural light doesn't go around corners except when reflecting.
The spells daylight and darkness specifically state that a light-proof covering will block their effect so they will not project around corners either.
In real life, light from any source would reflect around a corner to some extent. The amount would depend on the brightness of the light source and how reflective the wall is. You could assume the same rules apply in the game.