<Li> You should also add the template ((Translated sv Högertrafikomläggningen)) to the talk page . </Li> <Li> For more guidance, see Wikipedia: Translation . </Li> <P> Dagen H (H day), today usually called "Högertrafikomläggningen" ("The right - hand traffic diversion"), was the day on 3 September 1967, in which the traffic in Sweden switched from driving on the left - hand side of the road to the right . The "H" stands for "Högertrafik", the Swedish word for "right traffic". It was by far the largest logistical event in Sweden's history . </P> <P> There were various major arguments for the change: </P>

The day sweden changed from left to right