Sydney to Boulder City time converter

Boulder City is 18 hours behind Sydney. When it is 9:00 AM in Sydney, it is 3:00 PM (Sun, Oct 18) in Boulder City.

Sydney AEDT

Monday, October 19, 2026

Boulder City PDT

Monday, October 19, 2026

Sydney
New South Wales, Australia
Mon, Oct 19
AEDTUTC+11
Boulder City
Nevada, United States
Mon, Oct 19
PDTUTC-7-18h
Finding your time zone…
Shared working hours (9:00–18:00)

Sydney to Boulder City conversion table

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

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

Best time to call or meet

Both sides are at work from 9:00 AM – 12:00 PM in Sydney (3:00 PM – 6:00 PM in Boulder City).

Daylight saving time and the difference

The difference changes during the year because Sydney and Boulder City switch clocks on different dates:

  • Oct 19, 2026 – Nov 1, 2026: -18h
  • Nov 1, 2026 – Mar 14, 2027: -19h
  • Mar 14, 2027 – Apr 4, 2027: -18h
  • Apr 4, 2027 – Oct 3, 2027: -17h
  • Oct 3, 2027 – Oct 19, 2027: -18h

Distance

Sydney and Boulder City are 12,448 km (7,735 miles) apart in a straight line.

More conversions

Boulder City 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 Boulder CityLondon to Boulder CityLos Angeles to Boulder CityChicago to Boulder CityToronto to Boulder CitySão Paulo to Boulder CityParis to Boulder CityBerlin to Boulder CityMoscow to Boulder CityDubai to Boulder CityNew Delhi to Boulder CityBangkok to Boulder City

Questions and answers

What is the time difference between Sydney and Boulder City?

Boulder City is 18 hours behind Sydney.

What time is it in Boulder City when it is 9 AM in Sydney?

When it is 9:00 AM in Sydney, it is 3:00 PM (Sun, Oct 18) in Boulder City.

When is the best time to call Boulder City from Sydney?

Both sides are at work from 9:00 AM – 12:00 PM in Sydney (3:00 PM – 6:00 PM in Boulder City).

Does the time difference between Sydney and Boulder City change?

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