The short answer

Houston is 15 hours behind Australian Eastern Standard Time.

Houston
6:42:24pm
CDT · UTC-05:00 · Tue, Jun 23
Australian Eastern Standard Time
9:42:24am
AEST · UTC+10:00 · Wed, Jun 24
Read across to convert
Houston
CDT · UTC-05:00
6:42pm ☾
Australian Eastern Standard Time
AEST · UTC+10:00
9:42am ☀
Click any row to pin that hour across both zones.
12amTue
3pm
WORK
1am
4pm
WORK
2am
5pm
3am
6pm
4am
7pm
5am
8pm
6am
9pm
7am
10pm
8am
11pm
9am
WORK
12amWed ·+1d
10am
WORK
1amWed ·+1d
11am
WORK
2amWed ·+1d
12pm
WORK
3amWed ·+1d
1pm
WORK
4amWed ·+1d
2pm
WORK
5amWed ·+1d
3pm
WORK
6amWed ·+1d
4pm
WORK
7amWed ·+1d
5pm
8amWed ·+1d
NOW
6pm
9amWed ·+1d
WORK
7pm
10amWed ·+1d
WORK
8pm
11amWed ·+1d
WORK
9pm
12pmWed ·+1d
WORK
10pm
1pmWed ·+1d
WORK
11pm
2pmWed ·+1d
WORK
daylightnightworking hoursoverlap
Best time to meet
Closest workable window
Just outside the working window — early on one side, late on the other.
Houston
4pm–7pm
=
Australian Eastern Standard Time
7am–10am
next day
Popular conversions

Quick reference.

9amHouston=12amAustralian Eastern Standard Time · next day
12pmHouston=3amAustralian Eastern Standard Time · next day
3pmHouston=6amAustralian Eastern Standard Time · next day
5pmHouston=8amAustralian Eastern Standard Time · next day
9pmHouston=12pmAustralian Eastern Standard Time · next day
In context

What each side covers.

Houston
CDT · UTC-05:00
6:42pm
Cities on this clock
9:42am
Cities on this clock

Frequently asked

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

What is the time difference between Houston and Australian Eastern Standard Time?
Houston is 15 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 9am in Houston, what time is it in Australian Eastern Standard Time?
9am in Houston is 12am in Australian Eastern Standard Time on the next 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 Houston and Australian Eastern Standard Time?
There's no comfortable 9-to-5 overlap between Houston 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 — CDT 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.