In Prague, the capital city of the Czech Republic, you will find a unique way of reading the clock. The Prague Astronomical Clock, also known as the Orloj, is a medieval astronomical clock located in the Old Town Square. It is not just a timekeeping device but also a work of art and an important symbol of the city’s rich history and culture.
The History of the Prague Astronomical Clock
The construction of the Prague Astronomical Clock dates back to the early 15th century. It was made by a master clockmaker named Mikuláš of Kadaň, with astronomical dials designed by Jan Šindel. Over the years, it has been repaired and modified several times, but its essential features and mechanisms have remained intact.
Reading the Time on the Prague Astronomical Clock
Reading the time on the Prague Astronomical Clock may seem confusing at first glance due to its intricate design. However, once you understand its different elements, it becomes easier to decipher.
The Main Dial
The main dial of the clock displays both astronomical and ordinary time. The inner circle represents Old Czech Time (or Central European Time) and uses Roman numerals for hours from 1 to 24. The outer circle represents Babylonian Time (or hours after sunset) and uses Arabic numerals for hours from 1 to 12.
To read ordinary time on the main dial, simply locate the hour hand pointing to one of the Roman numerals on the inner circle. The minute hand indicates minutes in a traditional way.
The Sun Dial
Located above the main dial is a smaller sun dial that shows Sun Time or Ordinary Mean Time (GMT). The sun hand rotates around the dial, indicating the position of the sun in relation to the local time.
To read Sun Time, align the sun hand with the current position of the sun on the outer circle. The Roman numerals on this circle represent hours before or after noon (12).
Additional Features of the Prague Astronomical Clock
The Prague Astronomical Clock offers more than just timekeeping. It also features several mechanical figures that come to life at certain intervals throughout the day.
- The Walk of the Apostles: Every hour from 9 am to 11 pm, a small door above the main dial opens, and twelve apostles appear. They move in procession, accompanied by a bell toll and other animated figures.
- The Astronomical Dial: This elaborate dial displays various astronomical details such as zodiac signs, equinoxes, and phases of the moon. It provides valuable information for astronomers and those interested in celestial events.
- The Calendar Dial: Located below the main dial, this dial shows months, days, and dates using different symbols and signs.
Conclusion
The Prague Astronomical Clock is not just a timepiece but also a remarkable piece of art and engineering. Its unique design and features make it a must-see attraction for visitors to Prague. By understanding how to read its different dials and appreciating its additional mechanical wonders, you can truly immerse yourself in its fascinating history and functionality.