Hello,
The ICPC 2023 Yokohama regional contest is scheduled to take place on November 26 from 09:30 to 14:30 (JST, UTC+9).
An online open contest is also planned on Aizu Online Judge, with delay of 30 minutes. I will update this post with the exact timing once it is confirmed, but for reliable information, please refer to the official site.
I hope you thoroughly enjoy the contest!
(Disclaimer: I am not responsible for organizing the open contest. In the event of any issues, there may be a postponement of the contest.)
Update: Open contest page is now available. It will start with 30 minutes delay.