Explore the City's Forgotten Line

The Prague Meridian is an important historical reference point located in Prague. It marks the line of longitude that was used as the standard for timekeeping in Central Europe before the adoption of the Greenwich Mean Time (GMT) system.

The meridian runs through the Old Town Hall, specifically through the Prague Astronomical Clock (or Prague Orloj), a famous medieval timepiece that has been an iconic symbol of the city since its installation in 1410. The meridian line is embedded in the pavement and is often used by visitors as a point of interest.

Historically, the Prague Meridian was significant for astronomical observations and timekeeping. In the 19th century, it was used to set local mean time and was an important reference for navigation and scientific measurements across Central Europe.

You can find markers along the meridian line that celebrate its historical importance. The line is not only a fascinating piece of history but also a reminder of Prague's role in the development of timekeeping and astronomy.

Today, while the Greenwich Meridian has become the global standard for time, the Prague Meridian remains a point of historical and cultural interest, reflecting the city's rich scientific heritage.