CEOI 2020 day 1 online mirror (unrated, IOI format) starts on the 26th of August at 12:05 UTC. Please, join by the link https://codeforces.com/contests/1402

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CEOI 2020 day 2 online mirror (unrated, IOI format) starts on the 28th of August at 12:05 UTC. Please, join by the link https://codeforces.com/contests/1403

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Codeforces Round #666 (Div. 1, Div. 2) starts on the 30th of August at 14:35 UTC.
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Codeforces Round #667 (Div. 3) will take place on the 4th of September at 14:35 UTC.
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Codeforces Round #668 (Div. 1, Div. 2) starts on the 6th of September at 14:35 UTC.
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Codeforces Round #669 (Div. 2) will take place on the 8th of September at 14:35 UTC.
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A new lesson in the EDU section is presented by Vitaly Aksenov - the researcher at ITMO University, the member of the Jury Committee of several olympiads such as NERC, Bioinformatics Contest, Russian Code Cup and etc, Ph.D. The theme of the lesson is Disjoint Sets Union (DSU).

Please, join the "ITMO Academy: pilot course" by the link https://codeforces.com/edu/courses

Codeforces Round #670 (Div. 2) will take place on the 12th of September at 13:35 UTC.
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Educational Codeforces Round 95 (rated for Div. 2) starts on the 14th of September at 14:35 UTC.
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Educational Codeforces Round 95 (rated for Div. 2) starts in ~2 hours.
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Codeforces Round #671 (Div. 2) will take place on the 19th of September at 14:35 UTC.
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Codeforces Round #672 (Div. 2) will take place on the 24th of September at 14:35 UTC.
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