According to the official HUGO site, the shortlist of finalists for this year’s Hugo Awards is scheduled to be announced on April 4 (Pacific Daylight Time) at four conventions around the world:

• Norwescon (Seattle) 12:00 PDT April 4
• Minicon (Minneapolis) 14:00 CDT April 4
• Eastercon (UK) 20:00 BST April 4
• New Zealand Natcon 07:00 NZST April 5

The announcement will also be carried live online via UStream. Coverage is scheduled to begin at Noon on Saturday, April 4, 2015, Pacific Daylight Time. (GMT -7).

Voting on the final ballot will begin shortly after the finalists are announced. Only members of the 2015 Worldcon can vote on the final ballot. Both attending and supporting (non-attending) members of the 2015 Worldcon will be able to vote on the final ballot. You do not have to attend the 2015 Worldcon to vote on the 2015 Hugo Awards.