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Name	Start time
International Olympiad in Informatics 2021 Day 2	2025-06-10 15:00:04
International Olympiad in Informatics 2021 Day 1	2025-06-09 16:05:01
The 20th Japanese Olympiad in Informatics Spring Training Camp (JOISC 2020/2021) Day 3	2025-06-06 16:36:00
The 23rd Japanese Olympiad in Informatics Spring Training (JOIST 2023/2024) Day 3	2025-06-03 16:45:02
The 23rd Japanese Olympiad in Informatics Spring Training (JOIST 2023/2024) Day 2	2025-05-30 17:05:02
The 23rd Japanese Olympiad in Informatics Spring Training (JOIST 2023/2024) Day 1	2025-05-27 16:05:01
International Olympiad in Informatics 2022 Day 2	2025-05-02 15:00:04
International Olympiad in Informatics 2022 Day 1	2025-05-01 15:25:01