Seongnam-si to Sydney Time Difference
Sydney is 1 hour ahead of Seongnam-si
24-Hour Comparison
Business hours Extended Off hours
Seongnam-si
12p
01p
02p
03p
04p
05p
06p
07p
08p
09p
10p
11p
12a
01a
02a
03a
04a
05a
06a
07a
08a
09a
10a
11a
Sydney
01p
02p
03p
04p
05p
06p
07p
08p
09p
10p
11p
12a
01a
02a
03a
04a
05a
06a
07a
08a
09a
10a
11a
12p
Each column is the same moment in both cities, starting from right now and rolling forward 24 hours — daylight saving is already accounted for.
Best Time to Call
On a typical weekday (Monday–Friday).
- 12:00 PM – 04:00 PM in Seongnam-si01:00 PM – 05:00 PM in Sydney
- 09:00 AM – 12:00 PM in Seongnam-si10:00 AM – 01:00 PM in Sydney
Frequently Asked Questions
- What is the time difference between Seongnam-si and Sydney?
- Sydney is 1 hour ahead of Seongnam-si. Seongnam-si is currently UTC+9 and Sydney is UTC+10.
- Is Sydney ahead of or behind Seongnam-si?
- Sydney is ahead of Seongnam-si.
- What is the best time to call Sydney from Seongnam-si?
- On a typical weekday, the best time is 12:00 PM–04:00 PM in Seongnam-si (01:00 PM–05:00 PM in Sydney), 09:00 AM–12:00 PM in Seongnam-si (10:00 AM–01:00 PM in Sydney), when both cities are within business hours.
- Does the time difference between Seongnam-si and Sydney change during the year?
- Yes. Seongnam-si and Sydney don't switch to daylight saving time on the same schedule, so the offset shifts by up to an hour for part of the year.