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【Japan Knowledge Lib】Notice of system maintenance
Oct.9,2025 Update
Due to system maintenance, all service will be suspended during the following date and
time.
■From 18:00 to 21:00 Wed, October 29th (Japan
time)
Restart time may change slightly depending
on the work status.
■Suspended service
AllJapanknowledge service (JapanKnowledge Lib, Select contents and JKBooks)
We aplologize for any inconvenience this may cause you.