ACST to EST Converter

Standard business hours (9 AM–5 PM, Mon–Fri) in Australian Central Time and Eastern Time don't overlap on the same weekday. Eastern Time is 13 hours behind Australian Central Time.

Realistic options: hand off asynchronously, or stretch one side by an hour to catch the other team at the start or end of their day.

Australian Central Time is also known as ACST, or ACDT. To call Australia, dial +61.

Eastern Time is also known as EST, or EDT. To call United States, dial +1.

Eastern Time is approximately 10,600 miles east of Australian Central Time.

Both zones observe daylight saving time, but they transition on different dates.

Australian Central Time: next transition on Sunday, October 4, 2026.

Eastern Time: next transition on Sunday, November 1, 2026.

Australian Central Time and Eastern Time are in opposite hemispheres, so their clocks change in opposite directions about six months apart — one springs forward while the other falls back. The offset between them therefore shifts twice a year and can swing by up to two hours across the seasons, more than a typical same-hemisphere pair. Recurring meetings will need re-checking after each transition.

See the daylight saving time page for transition dates across every time zone.