Convert ET to KST
Eastern Time (ET) to Korea Standard Time (KST)
When it's 12:00 PM in New York, it's 1:00 AM in Seoul (next day)
On Jan 1 – Mar 7, 2026; Nov 1, 2026 – Mar 13, 2027; Nov 7 – Dec 31, 2027: 2:00 AM in Seoul (next day).
Interactive Converter
Pick any time and date to convert between ET and KST.
ET to KST Conversion Table
Full 24-hour comparison. Business hours (9 AM -- 6 PM) are highlighted.
| New York (ET) | Seoul (KST) |
|---|---|
| 12:00 AM | 1:00 PM |
| 1:00 AM | 2:00 PM |
| 2:00 AM | 3:00 PM |
| 3:00 AM | 4:00 PM |
| 4:00 AM | 5:00 PM |
| 5:00 AM | 6:00 PM |
| 6:00 AM | 7:00 PM |
| 7:00 AM | 8:00 PM |
| 8:00 AM | 9:00 PM |
| 9:00 AM | 10:00 PM |
| 10:00 AM | 11:00 PM |
| 11:00 AM | 12:00 AM +1 day |
| 12:00 PM | 1:00 AM +1 day |
| 1:00 PM | 2:00 AM +1 day |
| 2:00 PM | 3:00 AM +1 day |
| 3:00 PM | 4:00 AM +1 day |
| 4:00 PM | 5:00 AM +1 day |
| 5:00 PM | 6:00 AM +1 day |
| 6:00 PM | 7:00 AM +1 day |
| 7:00 PM | 8:00 AM +1 day |
| 8:00 PM | 9:00 AM +1 day |
| 9:00 PM | 10:00 AM +1 day |
| 10:00 PM | 11:00 AM +1 day |
| 11:00 PM | 12:00 PM +1 day |
These times apply on all dates in 2026–2027 except:
- Jan 1 – Mar 7, 2026; Nov 1, 2026 – Mar 13, 2027; Nov 7 – Dec 31, 2027: Seoul times are 1 hour later.
Best Meeting Window
Top meeting times for teams in ET and KST (9 AM -- 6 PM work hours, 1-hour meeting).
1 of 2 members within working hours. 1 in mid-day range (9 AM–5 PM). Outside work hours for New York.
1 of 2 members within working hours. 1 in mid-day range (9 AM–5 PM). Outside work hours for New York.
1 of 2 members within working hours. 1 in mid-day range (9 AM–5 PM). Outside work hours for Seoul.
These times apply on all dates in 2026–2027 except:
- Jan 1 – Mar 7, 2026; Nov 1, 2026 – Mar 13, 2027; Nov 7 – Dec 31, 2027: Seoul times are 1 hour later.
Time Difference & DST
The ET to KST gap is +13h or +14h, depending on daylight saving time. The table lists each period.
| Dates | New York | Seoul | Difference |
|---|---|---|---|
| Jan 1 – Mar 7, 2026 | UTC-5 | UTC+9 | +14h |
| Mar 8 – Oct 31, 2026 | UTC-4 | UTC+9 | +13h |
| Nov 1, 2026 – Mar 13, 2027 | UTC-5 | UTC+9 | +14h |
| Mar 14 – Nov 6, 2027 | UTC-4 | UTC+9 | +13h |
| Nov 7 – Dec 31, 2027 | UTC-5 | UTC+9 | +14h |
Seoul does not use daylight saving time.
Use the interactive converter for a specific date.
Major Cities
Eastern Time (ET)
- New York
- Miami
- Atlanta
Korea Standard Time (KST)
- Seoul
- Busan
- Incheon
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