Jury selection in September and start of trial in October? :dunno:
I don't think that can explain the difference in dates, because it doesn't seem like the courts distinguish the start date of a trial from the start date of jury selection in a trial. A date of x number of weeks/months seems to be reserved for a given trial, beginning on a certain date, which seems to include the jury selection process. Just from looking back at when the start-date of the TB trial was scheduled:
This is from December 2015 when the TB trial was scheduled to begin on January 11, 2016 (it was subsequently delayed another week); the trial opened with jury selection commencing on January 18, with the actual trial not starting until.. I believe it was Feb 1st.: "Barring another unexpected delay, the trial is set to open Monday, January 11, 2016 in Hamilton.": http://bayview-news.com/2015/12/jan-11-trial-of-dellen-milard-for-murder-of-tim-bosma.html/)