Sydney to Seongnam-si time
SydneyAustralia3:28:28 AMMon 28 Sept · AEST UTC+10
1 hSeongnam-si is behind
Seongnam-siSouth Korea2:28:28 AMMon 28 Sept · KST UTC+9Synchronising…
Sydney and Seongnam-si time difference
Seongnam-si is currently 1 h behind Sydney. Sydney is on AEST (UTC+10:00) and Seongnam-si is on KST (UTC+09:00).
The difference can change with daylight saving time. The next change is in Sydney on Sunday, 4 October 2026, after which Seongnam-si will be 2 h behind Sydney.
If it is 9:00 in Sydney, what time is it in Seongnam-si?
It is 08:00 in Seongnam-si.
What is the best time for a call between Sydney and Seongnam-si?
Use the planner above: green hours are within 9:00–17:00 in both places.
Time in Sydney · Time in Seongnam-si · Seongnam-si to Sydney