Brazzaville doesn't observe daylight saving time but Mosman does. DST in Mosman will start on 06 October 2019 and will end on 05 April 2020. Once DST starts in Mosman the time difference between Brazzaville and Mosman will be 10:0 hours.
Time zone: WAT - West Africa Time (UTC/GMT +1)Time zone difference / Flight distance
Time zone: AEST - Australian Eastern Standard Time (UTC/GMT +10)DST will start on 06 October 2019DST will end on 05 April 2020Time zone difference / Flight distance