Two Australian drug convicts on death row in Indonesia will not be executed this month after a court on Thursday postponed their appeal hearing against the rejection of a request for presidential clemency.

Australians Myuran Sukumaran and Andrew Chan have already been transferred to the prison island of Nusakambangan where the executions would take place.

The two Australians are among a group of 10 drug convicts due to be executed together by firing squad on Nusakambangan.