THE GRAND Final start time remains undecided as the AFL ponders whether to move the decider into a twilight time slot.

AFL chief executive officer Gillon McLachlan said in October last year it was "inevitable" the match would eventually be moved forward to later in the afternoon. 

McLachlan said on Tuesday he would come closer to forming his view in November. 

"We haven't had a good think about that because we haven't had to," McLachlan said. 

"I'll get with my board in November and they'll have a view. We'll look at all the different stuff."

Meanwhile, extra time will not be introduced for the home and away season in 2018. 

That idea gained momentum following an extraordinary elimination final between Port Adelaide and West Coast that went into extra time, only to be decided by a Luke Shuey goal after the siren. 

The thrilling nature of that contest led some to contend draws should no longer be a legitimate result.

"There won't be any change for next year. We changed the Grand Final (and) we've had extra time in finals for some time," McLachlan said.

"I must admit, I don't see the need to change it for the home and away. It was a compelling final, and gripping, but for me the draw is part of the fixture. 

"Again, this will be one (football operations manager) Steve Hocking will have carriage of and he may well have a different view than me, but I know he's got some priorities and he hasn't mentioned that one to me."