Prague astronomical clock

The Prague astronomical clock, or Orloj, is a medieval marvel installed in 1410 on the southern wall of the Old Town Hall. It features an astronomical dial showing the position of the sun and moon, a calendar dial, and moving figurines of the Apostles and other characters. Every hour from 9 a.m. to 11 p.m., crowds gather to watch the procession of the Twelve Apostles and the striking of the bell. The clock is a masterpiece of medieval engineering and a symbol of Prague.

Don't miss

• Watch the hourly show of the Twelve Apostles and other moving figures.
• Study the intricate astronomical dial with its zodiac ring and sun pointer.
• Look for the calendar dial below, painted by Josef Mánes in the 19th century.

Tickets & tours

Ways to visit Prague astronomical clock

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