Sydney to Altamira time converter

Altamira is 17 hours behind Sydney. When it is 9:00 AM in Sydney, it is 4:00 PM (Wed, Oct 21) in Altamira.

Sydney AEDT

Thursday, October 22, 2026

Altamira CST

Wednesday, October 21, 2026

Sydney
New South Wales, Australia
Thu, Oct 22
AEDTUTC+11
Altamira
Tamaulipas, Mexico
Wed, Oct 21
CSTUTC-6-17h
Finding your time zone…
Shared working hours (9:00–18:00)

Sydney to Altamira conversion table

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

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

Best time to call or meet

Both sides are at work from 9:00 AM – 11:00 AM in Sydney (4:00 PM – 6:00 PM in Altamira).

Daylight saving time and the difference

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

  • Oct 22, 2026 – Apr 4, 2027: -17h
  • Apr 4, 2027 – Oct 3, 2027: -16h
  • Oct 3, 2027 – Oct 22, 2027: -17h

Distance

Sydney and Altamira are 13,238 km (8,226 miles) apart in a straight line.

More conversions

Altamira 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 AltamiraLondon to AltamiraLos Angeles to AltamiraChicago to AltamiraToronto to AltamiraSão Paulo to AltamiraParis to AltamiraBerlin to AltamiraMoscow to AltamiraDubai to AltamiraNew Delhi to AltamiraBangkok to Altamira

Questions and answers

What is the time difference between Sydney and Altamira?

Altamira is 17 hours behind Sydney.

What time is it in Altamira when it is 9 AM in Sydney?

When it is 9:00 AM in Sydney, it is 4:00 PM (Wed, Oct 21) in Altamira.

When is the best time to call Altamira from Sydney?

Both sides are at work from 9:00 AM – 11:00 AM in Sydney (4:00 PM – 6:00 PM in Altamira).

Does the time difference between Sydney and Altamira change?

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