[Updated 3:10 PM PST] The post incorrectly listed the maintenance as lasting 5 hours instead of 2, and listed one of the PST times incorrectly. This has been updated. We will be performing an unscheduled minor patch on Friday, December 21, 2018 at 3:00 PM PST (6:00 PM EST / 12:00 AM CET December 22 / 10:00 AM AEDT December 22). We anticipate the maintenance to last approximately 2 hours, concluding around 5:00 PM PST on Friday, December 21 (8:00 PM EST / 2:00 AM CET December 22 / 12:00 PM AEDT December 22). Please note that the estimated length of time for each maintenance is subject to change without notification. Thanks for your patience! Time: Friday, December 21, 2018 PST (UTC -8): 3:00 PM - 5:00 PM EST (UTC -5): 6:00 PM - 8:00 PM CET (UTC +1): 12:00 AM (December 22) - 2:00 AM (December 22) AEDT (UTC +11): 10:00 AM (December 22) - 12:00 PM (December 22) What will be unavailable: All MapleStory game servers. Changes and Updates: Updating MapleStory to v.201.3.0. Fixing an issue where some friendly mobs didn't have invincibility frames, causing stability issues and ending quests, dungeons, and related content prematurely. Fixing an issue with Kaiser's 5th Job skill "Draco Surge" where it would cause a disconnect while hitting enemies in its final form. The Quest Booster was removed from the Cash Shop due to an issue. View on the Official Site