page_title: Dagen H
hierarchical_section_title: Dagen H
caption_attribution_description: Svenska: Hamngatan med Sagerska husen i juni 1966
context_page_description: Dagen H, today usually called "Högertrafikomläggningen", 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.
context_section_description: 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.
caption: Left-hand traffic in Stockholm in 1966
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