Hello.
This is the Gravity Co., Ltd. Ragnarok Zero Operations Team.
Due to the Memorial Day holiday on Wednesday, June 6th, we regret to inform you that the event period has been unavoidably changed as follows.
■ Event Schedule Change Details
Fine 
Dust OUT
Existing: After the regular maintenance on May 23, 2018 ~ Before the regular maintenance on June 6, 2018
Changed: After the regular maintenance on May 23, 2018 ~ Before the regular maintenance on June 5, 2018
[View Fine Dust OUT Event Details]
Please check the updated event schedule,
and we will make sure to carefully review event schedules going forward to prevent similar issues from occurring.
Thank you.
Gravity Co., Ltd. Ragnarok Zero Operations Team