Nintendo 3DS/Switch/Wii U/Mobile - upcoming maintenance sessions

Services impacted
Mobile: Fire Emblem Heroes

Times
Europe: May 30th (1AM to 4AM)
UK: May 30th (12AM to 3AM)
North America (EST): May 29th (7PM to 10PM)
North America (PST): May 29th (4PM to 7PM)
Japan: May 30th (8AM to 11AM)

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Services impacted
Nintendo Switch: Minecraft: Nintendo Switch Edition
Wii U: Minecraft: Wii U Edition

Times
Europe: May 31st (2.50AM to 4.30AM)
UK: May 31st (1.50AM to 3.30AM)
North America (EST): May 30th (8.50PM to 10.30PM)
North America (PST): May 30th (5.50PM to 7.30PM)
Japan: May 31st (9.50AM to 11.30AM)

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Services impacted
Nintendo 3DS: online play, leaderboards (unspecified games) [Japan-only]

Times
Europe: May 31st (3.50AM to 5.30AM)
UK: May 31st (2.50AM to 4.30AM)
North America (EST): May 30th (9.50PM to 11.30PM)
North America (PST): May 30th (6.50PM to 8.30PM)
Japan: May 31st (10.50AM to 12.30PM)

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Services impacted
Nintendo Switch: Use of Nintendo Account

Times
Europe: June 6th (2AM to 3AM)
UK: June 6th (1AM to 1AM)
North America (EST): June 5th (8PM to 9PM)
North America (PST): June 5th (5PM to 6PM)
Japan: June 6th (9AM to 10AM)