Sydney to Round Rock time converter

Round Rock is 16 hours behind Sydney. When it is 9:00 AM in Sydney, it is 5:00 PM (Sun, Oct 18) in Round Rock.

Sydney AEDT

Monday, October 19, 2026

Round Rock CDT

Sunday, October 18, 2026

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

Sydney to Round Rock conversion table

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

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

Best time to call or meet

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

Daylight saving time and the difference

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

  • Oct 19, 2026 – Nov 1, 2026: -16h
  • Nov 1, 2026 – Mar 14, 2027: -17h
  • Mar 14, 2027 – Apr 4, 2027: -16h
  • Apr 4, 2027 – Oct 3, 2027: -15h
  • Oct 3, 2027 – Oct 19, 2027: -16h

Distance

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

More conversions

Round Rock to SydneySydney to New YorkSydney to LondonSydney to Los AngelesSydney to ChicagoSydney to TorontoSydney to São PauloSydney to ParisSydney to BerlinSydney to MoscowSydney to DubaiSydney to New DelhiSydney to Bangkok
New York to Round RockLondon to Round RockLos Angeles to Round RockChicago to Round RockToronto to Round RockSão Paulo to Round RockParis to Round RockBerlin to Round RockMoscow to Round RockDubai to Round RockNew Delhi to Round RockBangkok to Round Rock

Questions and answers

What is the time difference between Sydney and Round Rock?

Round Rock is 16 hours behind Sydney.

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

When it is 9:00 AM in Sydney, it is 5:00 PM (Sun, Oct 18) in Round Rock.

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

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

Does the time difference between Sydney and Round Rock change?

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