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[FINISHED] keio.jp system maintenance information

This work has been completed. Thank you for your cooperation.

Due to the system maintenance, keio.jp Portal will be temporarily unavailable during the following period.

8:00 p.m. to 9:00 p.m. on Saturday, Jan. 28 , 2023


Each application authenticated by keio.jp is not affected.
We apologize for any inconvenience, and thank you for your cooperation.

Last-Modified: January 30, 2023

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