AtCoder Contest Schedule

The next AtCoder Contests event is scheduled for Sep 5. The full calendar covers every upcoming event and updates automatically as new dates are announced, so you can always see what's coming next without checking back.

Click the Sync button above, sign in with your Google account, and choose "Google Calendar." Every upcoming AtCoder Contests event will appear in your Google Calendar within a few seconds, and new events will be added automatically as the schedule grows. Sync2Cal also supports Apple Calendar, Outlook, and any app that reads the iCal format.

Yes. This calendar automatically includes every special event tied to AtCoder Contests, not just the regular schedule. When a new event is added, including late additions, rescheduled dates, and postponements, Sync2Cal pushes the update to your synced calendar so you don't have to re-sync manually.

All AtCoder Contests events are stored in their original local time and converted to your calendar app's timezone automatically. If you're travelling, Google Calendar, Apple Calendar, and Outlook will each adjust the displayed time to match your current location, so you don't need to do anything special.

Sync2Cal pulls updates from trusted official sources for Competitive Programming multiple times a day. When a event is added, rescheduled, or cancelled, the change is pushed to your synced calendar within a few hours. You never need to re-sync or download a new file. Your AtCoder Contests calendar stays current on its own.