By my maths it definitely seems to be a week earlier. I wonder if there is going to be an extra contestant/week? Will the show finale a week earlier or will there be an extra week of training between the launch and the proper series.

Originally Posted by guestofseth:
“Last series started a week later than Series 8 and 9 so it's just going back to normal.”
Strictly normally finishes on the Saturday before Christmas, the series started earlier for S 8 & 9 because they couldn't have the live finale on a Christmas Eve/Christmas Day. They have had previous finals on the on the 22nd and 23rd.
This year the Saturday before Christmas is the 21st, If the Strictly live shows are starting on September 27/28th then the finale will be December 14th if it is running for the normal 12 weeks.