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Prague Astronomical Clock: A Medieval Marvel

Witness the hourly spectacle of the world's oldest working astronomical clock in Prague's Old Town Square. A medieval marvel!

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The Prague Astronomical Clock, also known as the Orloj, is a captivating medieval clock in Prague's Old Town Square. Installed in 1410, it is one of the oldest and most intricate astronomical clocks still operating. The clock features an astronomical dial, moving apostle figures, and a calendar dial.

A brief summary to Prague Astronomical Clock

  • Monday 11 am-8 pm
  • Tuesday 9 am-8 pm
  • Wednesday 9 am-8 pm
  • Thursday 9 am-8 pm
  • Friday 9 am-8 pm
  • Saturday 9 am-8 pm
  • Sunday 9 am-8 pm

Local tips

  • Arrive 10-15 minutes before the hour to secure a good viewing spot for the hourly show.
  • Climb the Old Town Hall Tower for panoramic views of Prague and a behind-the-scenes look at the clock mechanism.
  • Be aware of your surroundings, as the crowded square is a known pickpocket hotspot.
  • Visit during the early morning for fewer crowds and softer lighting for photos.
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Getting There

  • Public Transport

    From Staroměstská metro station (Line A), the Astronomical Clock is a short 5-minute walk. Upon exiting the station, head towards Old Town Square. Tram lines 2, 17, and 18 also stop at Staroměstská. A single public transport ticket costs 30 CZK.

  • Walking

    From Charles Bridge, walk east along Karlova Street towards Old Town Square. The walk is approximately 10 minutes. The Astronomical Clock is located on the southern wall of the Old Town Hall.

  • Taxi/Ride-Share

    Taxis and ride-sharing services can drop you off near Old Town Square, but be aware of pedestrian zones. A short ride from Prague city center will likely cost between 150-250 CZK. Parking near the Old Town Square is limited.

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Discover more about Prague Astronomical Clock

The Prague Astronomical Clock, a mesmerizing horological masterpiece, graces the southern wall of the Old Town Hall in Prague's historic Old Town Square. Dating back to 1410, it stands as one of the oldest and most elaborate astronomical clocks still in operation. The clock is composed of three primary components : the astronomical dial, which represents the positions of the sun, moon, earth, and zodiac constellations; the moving figures, including the Twelve Apostles who parade every hour; and the calendar dial, added around 1490, displaying the day, month, and year. The clock also displays Babylonian time, German time, Old Bohemian time and Sidereal time, as well as the moons phases and the sun's journey across the constellations of the zodiac. Legend says that the clock was built by Master Hanuš, who was later blinded by Prague councilors to prevent him from building a similar clock for another city. Whether the legend is true or not, the clock has been one of the most iconic sites in Prague through the years. The clock suffered heavy damage during the Prague Uprising in 1945 but was repaired and restored. The last renovation of the astronomical clock was carried out from January to September 2018, following a reconstruction of the Old Town Tower. Every hour, throngs of tourists gather to witness the clock's hourly show, where the 12 Apostles appear. The clock also features figures representing vanity, greed, lust, and death. For a closer look, visitors can climb the Old Town Hall Tower for panoramic views of Prague and a glimpse into the clock's inner workings.

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