There is contradictory information in the Fulbright Hays documentation on the timeline for notifications and award activations. The correct information is in the FY 2017 Application Guidelines, a copy of which can be found here: https://www2.ed.gov/programs/iegpsddrap/applicant.html
Per page 24, the US Department of Education estimates that results will be announced in September 2017 and that the award period will be 10/1/17-3/31/19 (per page 26).
A student can use the award for 6-12 continuous months during the award period. Our recommendation is to not plan to have your award begin on 10/1/17 as there isn’t enough time to process all of the paperwork for an October 1 start date.