Warsaw meridian
52°14′37.9″N 21°00′32.76″E / 52.243861°N 21.0091000°E
The Warsaw meridian (Polish: południk warszawski) is a meridian line running through Warsaw. The local mean time at the meridian was known as Warsaw Mean Time. It corresponds to an offset from UTC of +01:24.
It is marked as being located at 52°14′40″N 21°00′42″E / 52.24444°N 21.01167°E (in accordance with the coordinate system used at that time). Coordinate values of the meridian which are engraved on a plate on the sidewalk differ from the current ones, the actual coordinates are 52°14′38.302963″N 21°00′33.036621″E / 52.24397304528°N 21.00917683917°E. The column also contains information in Russian.