The short answer
Australian Eastern Time is 13 hours ahead of Atlantic Daylight Time.
Australian Eastern Time☾
2:18:47am
AEST · UTC+10:00 · Fri, Sep 11
Atlantic Daylight Time☀
1:18:47pm
ADT · UTC-03:00 · Thu, Sep 10
Read across to convert
Australian Eastern Time
AEST · UTC+10:00
Atlantic Daylight Time
ADT · UTC-03:00
Click any row to pin that hour across both zones.
12amFri
11amThu ·−1d
WORK1am
12pmThu ·−1d
WORKNOW
2am
1pmThu ·−1d
WORK3am
2pmThu ·−1d
WORK4am
3pmThu ·−1d
WORK5am
4pmThu ·−1d
WORK6am
5pmThu ·−1d
7am
6pmThu ·−1d
8am
7pmThu ·−1d
9am
WORK8pmThu ·−1d
10am
WORK9pmThu ·−1d
11am
WORK10pmThu ·−1d
12pm
WORK11pmThu ·−1d
1pm
WORK12amFri
2pm
WORK1am
3pm
WORK2am
4pm
WORK3am
5pm
4am
6pm
5am
7pm
6am
8pm
7am
9pm
8am
10pm
9am
WORK11pm
10am
WORKdaylightnightworking hoursoverlap
Best time to meet=
Closest workable window
Just outside the working window — early on one side, late on the other.
Australian Eastern Time
7am–8am
Atlantic Daylight Time
6pm–7pm
previous day
Popular conversions
Quick reference.
9amAustralian Eastern Time=8pmAtlantic Daylight Time · prev day
12pmAustralian Eastern Time=11pmAtlantic Daylight Time · prev day
3pmAustralian Eastern Time=2amAtlantic Daylight Time
5pmAustralian Eastern Time=4amAtlantic Daylight Time
9pmAustralian Eastern Time=8amAtlantic Daylight Time
In context
What each side covers.
Australian Eastern Time
2:18amAEST · UTC+10:00
Atlantic Daylight Time
1:18pmADT · UTC-03:00
Canada & Caribbean
Related converters
Other popular pairs.
Pacific Time
9:18am
India Standard Time
9:48pm
Pacific Time to India12 hours 30 minutes behind
Eastern Daylight Time
12:18pm
Central European Time
6:18pm
Eastern Time to Central Europe6 hours behind
India Standard Time
9:48pm
Eastern Daylight Time
12:18pm
India to Eastern Time9 hours 30 minutes ahead
British Summer Time
5:18pm
India Standard Time
9:48pm
London to India4 hours 30 minutes behind
Pacific Daylight Time
9:18am
Eastern Daylight Time
12:18pm
Pacific to Eastern Time3 hours behind
Central European Time
6:18pm
India Standard Time
9:48pm
Central Europe to India3 hours 30 minutes behind
Frequently asked
Quick answers about converting between Australian Eastern Time and Atlantic Daylight Time. Can't find what you need? Email [email protected].
- What is the time difference between Australian Eastern Time and Atlantic Daylight Time?
- Australian Eastern Time is 13 hours ahead of Atlantic Daylight Time right now. We always show the live, daylight-saving-correct difference, so this figure already accounts for whichever side is observing summer time today.
- When it's 9am in Australian Eastern Time, what time is it in Atlantic Daylight Time?
- 9am in Australian Eastern Time is 8pm in Atlantic Daylight Time on the previous day. Use the hour-by-hour table above to read any other time across — find the row and read the matching cell in the other column.
- What's the best time for a call between Australian Eastern Time and Atlantic Daylight Time?
- There's no comfortable 9-to-5 overlap between Australian Eastern Time and Atlantic Daylight Time — they sit on opposite sides of the planet's working day. Plan for an early or late call on one side, or hand work off asynchronously.
- Does this account for daylight saving time?
- Yes. We track every clock change in both places, so the abbreviations you see — AEST and ADT — are the ones actually in effect right now, not a fixed all-year value. When either side changes its clocks, this page updates automatically.
- Why is the date sometimes different on each side?
- When two places are far enough apart, the same moment can fall on different calendar days. That is why some conversions are marked "previous day" or "next day" — it is the same instant in time, read off two clocks that crossed midnight at different points.