Olympiad 2025
Olympiad information
| Registration open | Sept. 14, 2025 |
| Results in personal accounts | Nov. 20, 2025 |
| Appeal date | Nov. 21, 2025 |
| Total results and the list of winners | Nov. 24, 2025 |
First round information
| Start day | Oct. 12, 2025, 4 p.m. NOVT (UTC+7) |
| End date | Oct. 12, 2025, 8:30 p.m. NOVT (UTC+7) |
Second round information
| Start day | Oct. 13, 2025, 4 p.m. NOVT (UTC+7) |
| End date | Oct. 20, 2025, 4 p.m. NOVT (UTC+7) |
