Istanbul Seongnam-siTime Converter
Istanbul (GMT+3, UTC+3) is currently 6 hours behind Seongnam-si (KST, UTC+9). Compare live clocks, convert any hour, and find times to meet.
Best time to meet between Istanbul and Seongnam-si
Best meeting times:
Istanbul: 9:00 AM – 12:00 PM
Seongnam-si: 3:00 PM – 6:00 PM
Quick answer
When it's in Istanbul, it's the same day in Seongnam-si.
Istanbul (GMT+3) runs 6 hours behind Seongnam-si (KST). Both sides keep standard office hours with a real 9–6 overlap — the highlighted window below works for everyone.
- Time difference
- +6h 00m
- Istanbul
- UTC+3
- Seongnam-si
- UTC+9
- Best call window
- 9:00 AM GMT+3
Istanbul to Seongnam-si conversion table
The next 12 hours in Istanbul and the matching local time in Seongnam-si. The current hour is highlighted; drag the converter's slider and the table follows.
| Istanbul · GMT+3 | Seongnam-si · KST |
|---|---|
| NOW 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 |
Wed, Jul 29 |
This time difference never changes
Neither side observes daylight saving against the other, so the gap stays constant all year. Istanbul does not observe daylight saving time. Seongnam-si 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 Istanbul
To Seongnam-si
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 Istanbul time in Seongnam-si?", 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": "Istanbul → Seongnam-si",
"url": "https://worldclock.pro/en/convert/istanbul-to-seongnam-si",
"from": {
"name": "Istanbul",
"type": "city",
"abbreviation": "GMT+3",
"daylightAbbreviation": null,
"iana": "Europe/Istanbul",
"standardUtcOffset": "+03:00",
"daylightUtcOffset": null,
"referenceCity": "Istanbul"
},
"to": {
"name": "Seongnam-si",
"type": "city",
"abbreviation": "KST",
"daylightAbbreviation": null,
"iana": "Asia/Seoul",
"standardUtcOffset": "+09:00",
"daylightUtcOffset": null,
"referenceCity": "Seongnam-si"
},
"currentDifferenceMinutes": 360,
"possibleDifferencesMinutes": [
360
],
"note": "The difference is constant year-round."
}
Frequently asked questions
What is the time difference between Istanbul and Seongnam-si?
Istanbul is currently 6 hours behind Seongnam-si. Istanbul is on GMT+3 (UTC+3) and Seongnam-si is on KST (UTC+9). The difference can change when either side starts or ends daylight saving time.
Is Seongnam-si ahead of or behind Istanbul?
Seongnam-si is currently 6 hours ahead of Istanbul.
When it is 9:00 AM in Istanbul, what time is it in Seongnam-si?
When it is 9:00 AM on a Tuesday in Istanbul, it is 3:00 PM in Seongnam-si.
Do Istanbul and Seongnam-si observe daylight saving time?
Istanbul does not observe daylight saving time. Seongnam-si does not observe daylight saving time.
How do I convert Istanbul time to Seongnam-si time?
Add 6 hours to any time in Istanbul to get the time in Seongnam-si. This page's converter and 24-hour table do it automatically and stay correct through daylight-saving changes.
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