Seongnam-si IstanbulTime Converter
Seongnam-si (KST, UTC+9) is currently 6 hours ahead of Istanbul (GMT+3, UTC+3). Compare live clocks, convert any hour, and find times to meet.
Best time to meet between Seongnam-si and Istanbul
Best meeting times:
Seongnam-si: 3:00 PM – 6:00 PM
Istanbul: 9:00 AM – 12:00 PM
Quick answer
When it's in Seongnam-si, it's the same day in Istanbul.
Seongnam-si (KST) runs 6 hours ahead of Istanbul (GMT+3). Both sides keep standard office hours with a real 9–6 overlap — the highlighted window below works for everyone.
- Time difference
- −6h 00m
- Seongnam-si
- UTC+9
- Istanbul
- UTC+3
- Best call window
- 3:00 PM KST
Seongnam-si to Istanbul conversion table
The next 12 hours in Seongnam-si and the matching local time in Istanbul. The current hour is highlighted; drag the converter's slider and the table follows.
| Seongnam-si · KST | Istanbul · GMT+3 |
|---|---|
| NOW Wed, Jul 29 |
Tue, Jul 28 |
Wed, Jul 29 |
Tue, Jul 28 |
Wed, Jul 29 |
Tue, Jul 28 |
Wed, Jul 29 |
Tue, Jul 28 |
Wed, Jul 29 |
Tue, Jul 28 |
Wed, Jul 29 |
Tue, Jul 28 |
Wed, Jul 29 |
Wed, Jul 29 |
Wed, Jul 29 |
Wed, Jul 29 |
Wed, Jul 29 |
Wed, Jul 29 |
Wed, Jul 29 |
Wed, Jul 29 |
Wed, Jul 29 |
Wed, Jul 29 |
Wed, Jul 29 |
Wed, Jul 29 |
This time difference never changes
Neither side observes daylight saving against the other, so the gap stays constant all year. Seongnam-si does not observe daylight saving time. Istanbul does not observe daylight saving time. This page always shows the live, DST-aware difference.
Related time zone conversions
Jump straight to another pair: every combination is a live tool, not an article.
From Seongnam-si
To Istanbul
One source of truth, for you and your AI
This page exposes the same answer as structured data, so when you ask an assistant "what's 9am Seongnam-si time in Istanbul?", it can cite the exact, DST-aware result, not a stale blog post.
- Schema.org JSON-LD on every converter page
- A machine-readable facts island with time zone identifiers and every possible offset
- Live times in <time datetime> elements with explicit UTC offsets
{
"pair": "Seongnam-si → Istanbul",
"url": "https://worldclock.pro/en/convert/seongnam-si-to-istanbul",
"from": {
"name": "Seongnam-si",
"type": "city",
"abbreviation": "KST",
"daylightAbbreviation": null,
"iana": "Asia/Seoul",
"standardUtcOffset": "+09:00",
"daylightUtcOffset": null,
"referenceCity": "Seongnam-si"
},
"to": {
"name": "Istanbul",
"type": "city",
"abbreviation": "GMT+3",
"daylightAbbreviation": null,
"iana": "Europe/Istanbul",
"standardUtcOffset": "+03:00",
"daylightUtcOffset": null,
"referenceCity": "Istanbul"
},
"currentDifferenceMinutes": -360,
"possibleDifferencesMinutes": [
-360
],
"note": "The difference is constant year-round."
}
Frequently asked questions
What is the time difference between Seongnam-si and Istanbul?
Seongnam-si is currently 6 hours ahead of Istanbul. Seongnam-si is on KST (UTC+9) and Istanbul is on GMT+3 (UTC+3). The difference can change when either side starts or ends daylight saving time.
Is Istanbul ahead of or behind Seongnam-si?
Istanbul is currently 6 hours behind Seongnam-si.
When it is 9:00 AM in Seongnam-si, what time is it in Istanbul?
When it is 9:00 AM on a Wednesday in Seongnam-si, it is 3:00 AM in Istanbul.
Do Seongnam-si and Istanbul observe daylight saving time?
Seongnam-si does not observe daylight saving time. Istanbul does not observe daylight saving time.
How do I convert Seongnam-si time to Istanbul time?
Subtract 6 hours from any time in Seongnam-si to get the time in Istanbul. This page's converter and 24-hour table do it automatically and stay correct through daylight-saving changes.
More world clock & time zone apps
From the team behind worldclock.pro: global scheduling on iPhone & iPad, a Mac menu-bar clock, and precision Zulu/UTC for aviation, military, and HAM radio.
World Clock Master
Global time zone scheduling for international teams, travelers, and professionals who coordinate across cities and continents.
View app
World Clock Pro
The same powerful time zone converter, meeting scheduler, and world clock, living in your Mac's menu bar.
View app