CCP published a DEV BLOG about the CSM Elections.
So the voting is in the first week of June, set your calendars.
Remember it is important to vote, whoever you are voting for. Even if you have accepted that nothing can save or help the candidate of your choice. Your vote helps keep up the relevance of a conduit between players and developers. It shows the interest of the player base. If you don't vote, then you don't need to complain about the direction the game is taking, the microtransactions, the cash grabs and the stale PVE content.