Sydney Opera House
Basic information
The Sydney Opera House is in Sydney, Australia and is a multi-venue performing arts center. This is one of the most distinctive and well-known buildings of the 20th century, that hosts over 1,500 performances (that is attended by over 1.2 million people) each year by various performing artists. It is one of the most popular tourist attractions in Australia and has over 8 million people visit each year, with 350,000 having a guided tour of the building.
Construction on the Opera House started the first of March 1969 and finished in 1973, with the building opening the 20th of October 1973. It is a 65m tall and 183m long building designed by a Danish architect Jorn Utzon. The Opera House became part of the UNESCO World Heritage Site on the 28th of June 2007.
Half birthday 
Next half birthday falls on
Age in different time units
Planet Age
How old Sydney Opera House would be if it was opened on a different planet
- 77 days from now, October 20, 2025, Sydney Opera House celebrate 52nd birthday
- 84 days from now, October 27, 2025, Sydney Opera House celebrate exactly 19,000 days
- 85 days from now, October 28, 2025, Sydney Opera House celebrate 216th Mercury age
- 173 days from now, January 24, 2026, Sydney Opera House celebrate 217th Mercury age
- 183 days from now, February 3, 2026, Sydney Opera House celebrate 85th Venus age
- 250 days from now, April 11, 2026, Sydney Opera House celebrate exactly 460,000 hours
- 259 days from now, April 20, 2026, Sydney Opera House celebrate exactly 630 months
- 260 days from now, April 21, 2026, Sydney Opera House celebrate 53rd half birthday
- 261 days from now, April 22, 2026, Sydney Opera House celebrate 218th Mercury age
- 319 days from now, June 19, 2026, Sydney Opera House celebrate 28th Mars age