R2D2 event duration

Does anybody know how long the event will last?
I will not be ready for day 1, but my Magnatrooper only need 55 shards to 5*, so if it lasts a week I maybe ready, if it last less I would like to know so I focus in Palpatine event.
I guess many players are in the same situation. Please let us know so we can at least participate in one of the events.