OzCLO 2021 dates
The first round will be held online on Wednesday, March 3, 2021. The competition is held at the same time across Australia – the specific times for each state timezone are listed in the table below.
| State | Preparation Time | Competition Time |
|---|---|---|
| ACT | 1:30 – 2:30pm | 2:30 – 4:30pm |
| NSW | 1:30 – 2:30pm | 2:30 – 4:30pm |
| NT | 12:00 – 1:00pm | 1:00 – 3:00pm |
| QLD | 12:30 – 1:30pm | 1:30 – 3:30pm |
| SA | 1:00 – 2:00pm | 2:00 – 4:00pm |
| VIC | 1:30 – 2:30pm | 2:30 – 4:30pm |
| WA | 10:30 – 11:30am | 11:30am – 1:30pm |
The second round, for the top-scoring teams from the first round, will be held on Wednesday, March 24, 2021.
Format
The first round is a two-hour contest. Students compete in teams of four. Each team enters their team’s solutions on one computer. Teachers are given access to a pdf copy of the problem set an hour before the competition begins for students, and should give each student a printed copy to work on.
For further information on the format of the competition, please check our FAQ page below.
Visit FAQRegistration
Registration will open from Monday February 1 to Sunday February 28 2021. The cost of registration in 2021 will be $40 per team ($10 per student).
Register here