Australia's Foreign Minister is again calling on the Indonesian president to reconsider his refusal to grant clemency to the Bali 9 ringleaders.

Julie Bishop says nothing will be gained if the executions of Andrew Chan and Myuran Sukumaran go ahead.

She had this to say when asked what details she has about when they'll face the firing squad.

"I've not had any advice, but I understand that it could be the 29th of April."