In this situation, can you use daylights?

In the video, you are driving in thick fog on a road through fields, along a row of trees, and a lorry emerges from the opposite direction. In this situation, you are not allowed to use daytime running lights. The answer is: no.

The Road Traffic Act allows you to use daytime running lights instead of dipped headlights only in normal visibility, and in reduced visibility caused by fog it requires you to switch on dipped headlights or front fog lights, or both at the same time. Daytime running lights are weak and usually do not switch on the rear lamps, so in fog a car driving behind you will see you only from close up. You switch to dipped headlights, and in very thick fog you add the front fog lights.

Legal basis: Art. 51 para. 2 and Art. 30 para. 1 point 1 letter a of the Road Traffic Act (Prawo o ruchu drogowym)