From all of the patches that happened with other version of Maplestory, I do not see game developers from other versions of Maplestory (Korean MS, Japan MS, China MS, Taiwan MS, and Southeast Asia MS) implement/change times to adapt to the new UTC timezone currently standard in GMS.
If this event ran in 9AM to 12:00AM PDT, people from Europe would have 4PM to 7AM UTC which they still have plenty of chances to participate in these events compared to having UTC time being the standard where the majority of North America would have less chance to participate.
Nexon seems to always patch content without any second though.
I rescued two androids currently.
From my experiences, the timing with passing through the stationary/moving lasers as well as some jumping across small gaps is really strict. They need to increase the interval time that lasers fire by 50% and slightly shorten some of the gaps that you have to jump over.
