A DECISION on a start time for this year's Grand Final will be made by the end of the month.

AFL chief executive Gillon McLachlan confirmed on Friday a call on whether to move the game to a twilight or evening timeslot would be made at the next Commission meeting in April.

Despite this week's agreement with the Victorian government to keep the Grand Final at the MCG until at least 2057, the League chief insisted the start time for the game had not been part of any negotiations.

"The start time of the Grand Final is a decision for our industry, we've never put it in broadcast rights, we've never put it into any agreements," McLachlan said.

"It's one of the most important days for our supporters and we'll make the decision we think is right for them."

McLachlan gave no hint as to which way the League was leaning.

"(My) personal view is that it's a Commission decision and we'll make the decision then," he added.

It's estimated a later start time to the Grand Final could boost the television audience for the event in non-traditional AFL states and overseas.

An evening match could also create more spectacular entertainment opportunities around the game.

There has been no announcement on an entertainment act for this year's game.

This year's Grand Final is scheduled for Saturday September 29 at the MCG.