Sydney to Diamond Head / Kapahulu / Saint Louis Heights time converter

Diamond Head / Kapahulu / Saint Louis Heights is 21 hours behind Sydney. When it is 9:00 AM in Sydney, it is 12:00 PM (Wed, Oct 21) in Diamond Head / Kapahulu / Saint Louis Heights.

Sydney AEDT

Thursday, October 22, 2026

Diamond Head / Kapahulu / Saint Louis Heights HST

Wednesday, October 21, 2026

Sydney
New South Wales, Australia
Thu, Oct 22
AEDTUTC+11
Diamond Head / Kapahulu / Saint Louis Heights
Hawaii, United States
Wed, Oct 21
HSTUTC-10-21h
Finding your time zone…
Shared working hours (9:00–18:00)

Sydney to Diamond Head / Kapahulu / Saint Louis Heights conversion table

Every hour of today in Sydney and the matching time in Diamond Head / Kapahulu / Saint Louis Heights. Light rows are typical working hours (9:00–18:00).

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

Best time to call or meet

Both sides are at work from 9:00 AM – 3:00 PM in Sydney (12:00 PM – 6:00 PM in Diamond Head / Kapahulu / Saint Louis Heights).

Daylight saving time and the difference

The difference changes during the year because Sydney and Diamond Head / Kapahulu / Saint Louis Heights switch clocks on different dates:

  • Oct 22, 2026 – Apr 4, 2027: -21h
  • Apr 4, 2027 – Oct 3, 2027: -20h
  • Oct 3, 2027 – Oct 22, 2027: -21h

Distance

Sydney and Diamond Head / Kapahulu / Saint Louis Heights are 8,167 km (5,075 miles) apart in a straight line.

More conversions

Diamond Head / Kapahulu / Saint Louis Heights 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 Diamond Head / Kapahulu / Saint Louis HeightsLondon to Diamond Head / Kapahulu / Saint Louis HeightsLos Angeles to Diamond Head / Kapahulu / Saint Louis HeightsChicago to Diamond Head / Kapahulu / Saint Louis HeightsToronto to Diamond Head / Kapahulu / Saint Louis HeightsSão Paulo to Diamond Head / Kapahulu / Saint Louis HeightsParis to Diamond Head / Kapahulu / Saint Louis HeightsBerlin to Diamond Head / Kapahulu / Saint Louis HeightsMoscow to Diamond Head / Kapahulu / Saint Louis HeightsDubai to Diamond Head / Kapahulu / Saint Louis HeightsNew Delhi to Diamond Head / Kapahulu / Saint Louis HeightsBangkok to Diamond Head / Kapahulu / Saint Louis Heights

Questions and answers

What is the time difference between Sydney and Diamond Head / Kapahulu / Saint Louis Heights?

Diamond Head / Kapahulu / Saint Louis Heights is 21 hours behind Sydney.

What time is it in Diamond Head / Kapahulu / Saint Louis Heights when it is 9 AM in Sydney?

When it is 9:00 AM in Sydney, it is 12:00 PM (Wed, Oct 21) in Diamond Head / Kapahulu / Saint Louis Heights.

When is the best time to call Diamond Head / Kapahulu / Saint Louis Heights from Sydney?

Both sides are at work from 9:00 AM – 3:00 PM in Sydney (12:00 PM – 6:00 PM in Diamond Head / Kapahulu / Saint Louis Heights).

Does the time difference between Sydney and Diamond Head / Kapahulu / Saint Louis Heights change?

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