AEST to ET Time Converter
ET is 15 hours behind AEST. Eastern Australia is currently on AEDT (UTC+11:00), and The US East Coast is currently on EDT (UTC-4:00).
Best Time to Call Between AEST and ET
Standard 9-to-5 hours in these two zones never overlap, so someone has to take the call outside their working day. The most workable window is 7:00 AM to 1:00 PM AEST, which is 4:00 PM to 10:00 PM ET.
both at work AEST only ET only neither — hours along the strip are AEST.
Common Times Converted
AEST on the left, ET on the right.
AEST to ET: Full 24-Hour Conversion Table
Shaded rows are working hours; the darker shade marks the hours when both zones are at work.
| AEST | ET | Working hours |
|---|---|---|
| 12:00 AM | 9:00 AM prev day | ET only |
| 1:00 AM | 10:00 AM prev day | ET only |
| 2:00 AM | 11:00 AM prev day | ET only |
| 3:00 AM | 12:00 PM prev day | ET only |
| 4:00 AM | 1:00 PM prev day | ET only |
| 5:00 AM | 2:00 PM prev day | ET only |
| 6:00 AM | 3:00 PM prev day | ET only |
| 7:00 AM | 4:00 PM prev day | ET only |
| 8:00 AM | 5:00 PM prev day | — |
| 9:00 AM | 6:00 PM prev day | AEST only |
| 10:00 AM | 7:00 PM prev day | AEST only |
| 11:00 AM | 8:00 PM prev day | AEST only |
| 12:00 PM | 9:00 PM prev day | AEST only |
| 1:00 PM | 10:00 PM prev day | AEST only |
| 2:00 PM | 11:00 PM prev day | AEST only |
| 3:00 PM | 12:00 AM | AEST only |
| 4:00 PM | 1:00 AM | AEST only |
| 5:00 PM | 2:00 AM | — |
| 6:00 PM | 3:00 AM | — |
| 7:00 PM | 4:00 AM | — |
| 8:00 PM | 5:00 AM | — |
| 9:00 PM | 6:00 AM | — |
| 10:00 PM | 7:00 AM | — |
| 11:00 PM | 8:00 AM | — |
What AEST and ET Actually Are
AEST — Australian Eastern Standard Time
Sydney, Melbourne, Brisbane, Canberra, Hobart. Standing at UTC+10:00 as written, and the region does change its clocks, so its live offset moves by an hour twice a year. The next change is on Sunday, April 4, 2027, to AEST. Sydney and Melbourne move to AEDT (UTC+11) for the southern summer; Brisbane does not change at all.
Queensland abandoned daylight saving after a 1992 referendum, so for five months a year Brisbane and Sydney read different clocks despite sharing a zone.
ET — Eastern Time
New York, Toronto, Washington DC, Atlanta, Miami, Boston. Standing at UTC-5:00 as written, and the region does change its clocks, so its live offset moves by an hour twice a year. The next change is on Sunday, November 1, 2026, to EST.
Eastern Time covers roughly half the US population and, because of that, is the zone most American business defaults to when nobody specifies one.
What This Means in Practice
The date changes mid-working-day
For 6 of the eight hours in a normal AEST working day, the equivalent ET time falls on a different calendar date. Anything scheduled in that stretch needs the date checked as well as the time, or a Tuesday call quietly becomes a Wednesday one at the other end.
Both sides change clocks, on different dates
Both regions observe daylight saving but do not switch on the same day, so for a week or two each spring and fall the gap between them is an hour different from the rest of the year. Those short windows are where recurring invitations quietly break.
Nearly opposite sides of the clock
At 15 hours apart, one side's morning is the other side's night. Handing work over at the end of a shift usually beats trying to get both parties in the same call.
Major Cities in Each Zone
Cities on AEST
Cities on ET
Frequently Asked Questions
What is the time difference between AEST and ET?
ET is 15 hours behind AEST.
What is 9:00 AM AEST in ET?
9:00 AM AEST is 6:00 PM the previous day ET.
What are the best hours to schedule a call between AEST and ET?
Standard business hours in these two zones do not overlap at all, so one side has to work outside the 9-to-5. The most workable window is 7:00 AM to 1:00 PM AEST, which is 4:00 PM to 10:00 PM ET.
Does the difference between AEST and ET change during the year?
Yes. Both regions observe daylight saving, and they do not switch on the same dates, so the gap shifts by an hour at least twice a year. The next clock change is on Sunday, April 4, 2027.
Does AEST always mean Australian Eastern Standard Time?
Sydney and Melbourne move to AEDT (UTC+11) for the southern summer; Brisbane does not change at all.