Round Rock to Sydney time converter

Sydney is 16 hours ahead of Round Rock. When it is 9:00 AM in Round Rock, it is 1:00 AM (Mon, Oct 19) in Sydney.

Round Rock CDT

Sunday, October 18, 2026

Sydney AEDT

Monday, October 19, 2026

Round Rock
Texas, United States
Sun, Oct 18
CDTUTC-5
Sydney
New South Wales, Australia
Mon, Oct 19
AEDTUTC+11+16h
Finding your time zone…
Shared working hours (9:00–18:00)

Round Rock to Sydney conversion table

Every hour of today in Round Rock and the matching time in Sydney. Light rows are typical working hours (9:00–18:00).

Round RockSydney
12:00 AM4:00 PM
1:00 AM5:00 PM
2:00 AM6:00 PM
3:00 AM7:00 PM
4:00 AM8:00 PM
5:00 AM9:00 PM
6:00 AM10:00 PM
7:00 AM11:00 PM
8:00 AM12:00 AM+1 day
9:00 AM1:00 AM+1 day
10:00 AM2:00 AM+1 day
11:00 AM3:00 AM+1 day
12:00 PM4:00 AM+1 day
1:00 PM5:00 AM+1 day
2:00 PM6:00 AM+1 day
3:00 PM7:00 AM+1 day
4:00 PM8:00 AM+1 day
5:00 PM9:00 AM+1 day
6:00 PM10:00 AM+1 day
7:00 PM11:00 AM+1 day
8:00 PM12:00 PM+1 day
9:00 PM1:00 PM+1 day
10:00 PM2:00 PM+1 day
11:00 PM3:00 PM+1 day

Best time to call or meet

Both sides are at work from 5:00 PM – 6:00 PM in Round Rock (9:00 AM – 10:00 AM in Sydney).

Daylight saving time and the difference

The difference changes during the year because Round Rock and Sydney switch clocks on different dates:

  • Oct 18, 2026 – Nov 1, 2026: +16h
  • Nov 1, 2026 – Mar 14, 2027: +17h
  • Mar 14, 2027 – Apr 3, 2027: +16h
  • Apr 3, 2027 – Oct 2, 2027: +15h
  • Oct 2, 2027 – Oct 18, 2027: +16h

Distance

Round Rock and Sydney are 13,646 km (8,479 miles) apart in a straight line.

More conversions

Sydney to Round RockRound Rock to New YorkRound Rock to LondonRound Rock to Los AngelesRound Rock to ChicagoRound Rock to TorontoRound Rock to São PauloRound Rock to ParisRound Rock to BerlinRound Rock to MoscowRound Rock to DubaiRound Rock to New DelhiRound Rock to Bangkok
New York to SydneyLondon to SydneyLos Angeles to SydneyChicago to SydneyToronto to SydneySão Paulo to SydneyParis to SydneyBerlin to SydneyMoscow to SydneyDubai to SydneyNew Delhi to SydneyBangkok to Sydney

Questions and answers

What is the time difference between Round Rock and Sydney?

Sydney is 16 hours ahead of Round Rock.

What time is it in Sydney when it is 9 AM in Round Rock?

When it is 9:00 AM in Round Rock, it is 1:00 AM (Mon, Oct 19) in Sydney.

When is the best time to call Sydney from Round Rock?

Both sides are at work from 5:00 PM – 6:00 PM in Round Rock (9:00 AM – 10:00 AM in Sydney).

Does the time difference between Round Rock and Sydney change?

Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.