Thanks for your question, Catherine. This was a tricky one and we had to go to the Serjeant-at-Arms for some help.
Parliament House has more than 2700 clocks. They all tell the time and most of them are also used to signal division votes in the Senate and the House of Representatives. The clocks in these rooms are different from other clocks in the building. They tell the time and count down the time left to give a speech.
The reason there are 2 clocks behind the Speaker of the House of Representatives’s chair is so that the space is symmetrical. Symmetry is an important part of the design of Parliament House.