Sydney to Định Công time converter

Định Công is 4 hours behind Sydney. When it is 9:00 AM in Sydney, it is 5:00 AM in Định Công.

Sydney AEDT

Tuesday, October 20, 2026

Định Công ICT

Monday, October 19, 2026

Sydney
New South Wales, Australia
Tue, Oct 20
AEDTUTC+11
Định Công
Vietnam
Mon, Oct 19
ICTUTC+7-4h
Finding your time zone…
Shared working hours (9:00–18:00)

Sydney to Định Công conversion table

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

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

Best time to call or meet

Both sides are at work from 1:00 PM – 6:00 PM in Sydney (9:00 AM – 2:00 PM in Định Công).

Daylight saving time and the difference

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

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

Distance

Sydney and Định Công are 7,764 km (4,824 miles) apart in a straight line.

More conversions

Định Công 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 Định CôngLondon to Định CôngLos Angeles to Định CôngChicago to Định CôngToronto to Định CôngSão Paulo to Định CôngParis to Định CôngBerlin to Định CôngMoscow to Định CôngDubai to Định CôngNew Delhi to Định CôngBangkok to Định Công

Questions and answers

What is the time difference between Sydney and Định Công?

Định Công is 4 hours behind Sydney.

What time is it in Định Công when it is 9 AM in Sydney?

When it is 9:00 AM in Sydney, it is 5:00 AM in Định Công.

When is the best time to call Định Công from Sydney?

Both sides are at work from 1:00 PM – 6:00 PM in Sydney (9:00 AM – 2:00 PM in Định Công).

Does the time difference between Sydney and Định Công change?

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