Sydney to Upper Alton time converter

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

Sydney AEDT

Monday, October 19, 2026

Upper Alton CDT

Sunday, October 18, 2026

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

Sydney to Upper Alton conversion table

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

SydneyUpper Alton
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 Upper Alton).

Daylight saving time and the difference

The difference changes during the year because Sydney and Upper Alton 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 Upper Alton are 14,598 km (9,071 miles) apart in a straight line.

More conversions

Upper Alton 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 Upper AltonLondon to Upper AltonLos Angeles to Upper AltonChicago to Upper AltonToronto to Upper AltonSão Paulo to Upper AltonParis to Upper AltonBerlin to Upper AltonMoscow to Upper AltonDubai to Upper AltonNew Delhi to Upper AltonBangkok to Upper Alton

Questions and answers

What is the time difference between Sydney and Upper Alton?

Upper Alton is 16 hours behind Sydney.

What time is it in Upper Alton when it is 9 AM in Sydney?

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

When is the best time to call Upper Alton from Sydney?

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

Does the time difference between Sydney and Upper Alton change?

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