• 2021.12.13 Maintenance MatNavi service is unavailable due to system maintenance. MatNavi
• 2021.11.01 Maintenance Service suspension due to electrical inspection (11/18-24, JST)
• 2021.11.01 Maintenance Service suspension due to system maintenance (11/13-14, JST)
• 2021.11.01 Maintenance Website suspension due to system maintenance (11/13-14, 11/20, JST)
• 2021.09.03 Maintenance DICE service and website will be temporally unavailable (9/6 7:00-9:00, JST)
• 2021.08.25 Maintenance MatNavi service suspension due to system maintenance (8/30 17:40-19:00, JST) MatNavi
• 2021.07.15 Maintenance PoLyInfo is back online MatNavi PoLyInfo
• 2021.07.09 Maintenance PoLyInfo is unavailable for system maintenance. MatNavi PoLyInfo
• 2021.06.30 Maintenance DICE service and website will be temporally unavailable (7/4 10:00-13:00, JST)
• 2021.05.26 Maintenance DICE service and website will be temporally unavailable (5/29 10:00-12:00, JST)
• 2021.04.26 Maintenance DICE service and website will be temporally unavailable (5/22 10:00-15:00, JST)
• 2021.03.25 Maintenance Notice of DICE Service Suspension (3/26, 7:00-9:00 JST)
• 2021.03.15 Maintenance MatNavi service suspension due to system maintenance (3/22 9:00-17:30, JST) MatNavi
• 2021.02.19 Maintenance Notice of DICE Service Suspension (3/6, 9:00-18:30 JST)
• 2021.01.19 Maintenance MatNavi service suspension due to system maintenance (1/25 13:00-17:00) MatNavi
• 2020.11.26 Maintenance DICE service and website will be temporally unavailable (12/5 9:00-12:00)

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