Undefeated welterweight Jeff Horn believes the time is right to fight the legendary Manny Pacquiao as negotiations over their proposed blockbuster bout ramp up.

Horn's promoters Duco Events are seeking to lock in what would be the biggest fight in Australian boxing history by the end of the month, with director Dean Lonergan hoping to sign a conditional agreement with powerful Top Rank CEO Bob Arum when they meet in Los Angeles on Tuesday.