The short answer

3pm in Irish Standard Time is 12am in Australian Eastern Standard Time on the next day.

Irish Standard Time is 9 hours behind Australian Eastern Standard Time. It lands deep outside working hours in Australian Eastern Standard Time — see the best time to meet below for a friendlier slot.

Irish Standard Time
3pm
Australian Eastern Standard Time
12am
next day
Right now
11:21amIST · UTC+01:00 · Thu, Jun 11
8:21pmAEST · UTC+10:00 · Thu, Jun 11
Read across to convert
Irish Standard Time
IST · UTC+01:00
11:21am ☀
Australian Eastern Standard Time
AEST · UTC+10:00
8:21pm ☾
Pinned3pmIrish Standard Time=12amAustralian Eastern Standard Time · Fri (next day)
12amThu
9am
WORK
1am
10am
WORK
2am
11am
WORK
3am
12pm
WORK
4am
1pm
WORK
5am
2pm
WORK
6am
3pm
WORK
7am
4pm
WORK
8am
5pm
9am
WORK
6pm
10am
WORK
7pm
NOW
11am
WORK
8pm
12pm
WORK
9pm
1pm
WORK
10pm
2pm
WORK
11pm
PINNED
3pm
WORK
12amFri ·+1d
4pm
WORK
1amFri ·+1d
5pm
2amFri ·+1d
6pm
3amFri ·+1d
7pm
4amFri ·+1d
8pm
5amFri ·+1d
9pm
6amFri ·+1d
10pm
7amFri ·+1d
11pm
8amFri ·+1d
daylightnightworking hoursoverlap
Best time to meet
Closest workable window
Just outside the working window — early on one side, late on the other.
Irish Standard Time
7am–10am
=
Australian Eastern Standard Time
4pm–7pm
Popular conversions

Quick reference.

9amIrish Standard Time=6pmAustralian Eastern Standard Time
12pmIrish Standard Time=9pmAustralian Eastern Standard Time
3pmIrish Standard Time=12amAustralian Eastern Standard Time · next day
5pmIrish Standard Time=2amAustralian Eastern Standard Time · next day
9pmIrish Standard Time=6amAustralian Eastern Standard Time · next day
In context

What each side covers.

Irish Standard Time
IST · UTC+01:00
11:21am
Cities on this clock
8:21pm
Cities on this clock

Frequently asked

Quick answers about converting between Irish Standard Time and Australian Eastern Standard Time. Can't find what you need? Email [email protected].

What is the time difference between Irish Standard Time and Australian Eastern Standard Time?
Irish Standard Time is 9 hours behind Australian Eastern Standard 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 3pm in Irish Standard Time, what time is it in Australian Eastern Standard Time?
3pm in Irish Standard Time is 12am in Australian Eastern Standard Time on the next day. It lands deep outside working hours in Australian Eastern Standard Time — see the best time to meet below for a friendlier slot. Use the hour-by-hour table above to read any other time across.
What's the best time for a call between Irish Standard Time and Australian Eastern Standard Time?
There's no comfortable 9-to-5 overlap between Irish Standard Time and Australian Eastern Standard 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 — IST and AEST — 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.