Seongnam-si
Gyeonggi-do, South Korea
Sunday, 27th September 2026
- UTC offset
- UTC+9
- Time zone
- Asia/SeoulKST
- Sunrise
- 6:23 am
- Sunset
- 6:21 pm
- Daylight
- 11 hours 58 minutes143 seconds shorter than yesterday
- Daylight saving
- NeverSame offset all year
Next time, skip the search: worldclock.free/seongnam-si goes straight here.
Daylight saving in Seongnam-si
Clocks here do not change: this zone stays on the same offset all year.
Seongnam-si has stayed on KST (UTC+9) all year, which means the difference to places that do change their clocks moves by an hour twice a year without Seongnam-si doing anything.
Seongnam-si time to your time
Need a specific time rather than right now? Try Seongnam-si to London, Seongnam-si to New York City, Seongnam-si to Tokyo, or the full converter.
Call times with London
There is no hour when both places are inside normal working hours. The least bad slot is usually early morning at the western end.
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Time difference between Seongnam-si and major cities
| City | Local time | 24h | Difference |
|---|---|---|---|
| Los Angeles PDT | 2:27 am | 02:27 | 16 hours behind |
| Mexico City CST | 3:27 am | 03:27 | 15 hours behind |
| Chicago CDT | 4:27 am | 04:27 | 14 hours behind |
| New York City EDT | 5:27 am | 05:27 | 13 hours behind |
| Toronto EDT | 5:27 am | 05:27 | 13 hours behind |
| São Paulo UTC-3 | 6:27 am | 06:27 | 12 hours behind |
| London BST | 10:27 am | 10:27 | 8 hours behind |
| Paris CEST | 11:27 am | 11:27 | 7 hours behind |
| Berlin CEST | 11:27 am | 11:27 | 7 hours behind |
| Johannesburg SAST | 11:27 am | 11:27 | 7 hours behind |
| Moscow MSK | 12:27 pm | 12:27 | 6 hours behind |
| Cairo EEST | 12:27 pm | 12:27 | 6 hours behind |
| Dubai UTC+4 | 1:27 pm | 13:27 | 5 hours behind |
| Delhi IST | 2:57 pm | 14:57 | 3 hours 30 minutes behind |
| Shanghai CST | 5:27 pm | 17:27 | 1 hour behind |
| Tokyo JST | 6:27 pm | 18:27 | the same time |
| Sydney AEST | 7:27 pm | 19:27 | 1 hour ahead |
| Auckland NZDT | 10:27 pm | 22:27 | 4 hours ahead |
About Seongnam-si
- Population
- 914832
- Coordinates
- 37.439, 127.138
- Region
- Gyeonggi-do, South Korea
- IANA zone
- Asia/Seoul
- Solar noon
- 12:22 pm
Sunrise and sunset above are computed from these coordinates with the NOAA solar equations: not looked up from a table, and not the same as the neighbouring city's.
Convert Seongnam-si time
Nearby and related
Questions people ask
What time is it in Seongnam-si right now?
It is 6:27 pm (18:27 on a 24-hour clock) on Sunday, 27th September 2026 in Seongnam-si. The clock on this page updates every second and is set from the server, not from your device, so it stays right even if your own clock has drifted.
What time zone is Seongnam-si in?
Seongnam-si uses the Asia/Seoul time zone, currently KST (UTC+9). That IANA identifier is the one to put in a calendar invite or a database column: abbreviations like KST are ambiguous, IANA identifiers are not.
Is Seongnam-si on daylight saving time right now?
No, and it never is. Seongnam-si stays on KST (UTC+9) all year round.
What time is sunrise and sunset in Seongnam-si today?
The sun rises at 6:23 am and sets at 6:21 pm today, giving 11 hours 58 minutes of daylight. That is 143 seconds shorter than yesterday.
How many hours ahead is Seongnam-si of Los Angeles?
Seongnam-si is 16 hours ahead of Los Angeles. When it is 6:27 pm in Seongnam-si, it is 2:27 am in Los Angeles. The full comparison table on this page covers twenty major cities and recalculates itself whenever either end changes its clocks.
Where exactly is Seongnam-si?
Seongnam-si is in Gyeonggi-do, South Korea, at 37.44° N, 127.14° E, with a population of about 914,832. Those coordinates are what the sunrise and sunset times above are calculated from.