AEST to BDT

About Australian Eastern Time

Sydney, Melbourne and Canberra run at UTC+10 as AEST and UTC+11 as AEDT, changing on the first Sunday in October and the first Sunday in April. Queensland does not change at all, so Brisbane matches Sydney for about half the year and sits an hour behind it for the rest — on the same "Eastern" label.

Cities on this clock: Sydney, Melbourne.

About Bangladesh Standard Time

Bangladesh is a fixed UTC+6, half an hour ahead of India. A single daylight-saving year in 2009 was not repeated.

Cities on this clock: Dhaka.

Watch out: BST here is Bangladesh Standard Time. The same letters are British Summer Time, which is UTC+1 — five hours apart.

How the difference is worked out

The gap between Australian Eastern Time and Bangladesh Standard Time is not one number. The two zones change their clocks on different dates, so for part of the year the difference is 5 hours and for the rest it is something else — the table above lists each stretch of 2026 with the date it starts and which country's clocks moved.

With both zones on their own standard time — daylight saving not in force anywhere — Bangladesh Standard Time is 4 hours behind Australian Eastern Time. That figure never changes; everything else on this page follows from it plus whichever clocks have moved.

Every figure here comes from the IANA time zone database via your browser's own Intl engine, using the zone ids Australia/Sydney and Asia/Dhaka. Nothing is looked up on a server and nothing about your visit is recorded.