These events will be available in Pokémon Black&White korean versions. Sorry, i do not speak korean, but from what I saw, the event will be distributed by Wi-Fi in six different time periods.
here are the time periods:
08.23 to 08.29
08.30 to 09.05
09.06 to 09.12
09.13 to 09.19
09.20 to 09.26
09.27 to 10.04
Note: If any information that I said is wrong, send me a PM or talk to one of the moderators to edit my post.
Edit: Add source Pokémon Korea
Edit 2: Thanks to nicki15 and Requiem for the information.
translated information: 드래곤타입 포켓몬을 완 전정복하기 위한 두 번째 미션과 자세한 정보는 8월 16일에 확인하자!
(Dragon type Pokemon to complete the second mission to restore vestibular. For more information, let's check on the 16th of August!)
Edit 3: Information completed Pokémon Korea
Note: Unlike the japanese version of this event, the pokémon were distributed at level 1, not as eggs. You can get six times the same pokémon (example: six Horsea) or get all six pokémon that are being distributed (example: Horsea, Trapinch, Swablu, Bagon, Druddigon), one in each week per game.
Thanks everyone for all informations!