Bitcoin's timing works via blocks, which can come at unpredictable intervals (although usually around one every ten minutes), and so the exact timing of the hard fork isn't known, but it should occur in November. (motherboard.vice.com)
According to the roadmap discussed during the Hong Kong meeting, the approximate time of the hard fork implementation was set in July 2017. (coinfox.info)
The BCH balance available to you will be equivalent to the BTC balance you had in your wallet at the time of the hard fork. (blog.bitpay.com)