EST to Seoul time conversion
Seoul is 14 hours ahead of EST.
EST is always UTC-5. Right now most places that use EST are on EDT (UTC-4): Seoul is 13 hours ahead of EDT.
Time difference with your location
EST is 5 hours behind UTC. Compare with your local time →
Choose a date and time
Choose the local time in EST to convert it to Seoul on that date.
Skipped clock-change times are unavailable; a repeated time uses its first occurrence.
24-hour conversion chart · EST → Seoul
This table converts each hour in EST to Seoul on 2026-10-21.
- Working hours
- Outside working hours
- Night hours
| EST | Seoul | Shared working hours |
|---|---|---|
| 00:0012:00 AM | 14:002:00 PM | |
| 01:001:00 AM | 15:003:00 PM | |
| 02:002:00 AM | 16:004:00 PM | |
| 03:003:00 AM | 17:005:00 PM | |
| 04:004:00 AM | 18:006:00 PM | |
| 05:005:00 AM | 19:007:00 PM | |
| 06:006:00 AM | 20:008:00 PM | |
| 07:007:00 AM | 21:009:00 PM | |
| 08:008:00 AM | 22:0010:00 PM | |
| 09:009:00 AM | 23:0011:00 PM | |
| 10:0010:00 AM | 00:0012:00 AM +1 day | |
| 11:0011:00 AM | 01:001:00 AM +1 day | |
| 12:0012:00 PM | 02:002:00 AM +1 day | |
| 13:001:00 PM | 03:003:00 AM +1 day | |
| 14:002:00 PM | 04:004:00 AM +1 day | |
| 15:003:00 PM | 05:005:00 AM +1 day | |
| 16:004:00 PM | 06:006:00 AM +1 day | |
| 17:005:00 PM | 07:007:00 AM +1 day | |
| 18:006:00 PM | 08:008:00 AM +1 day | |
| 19:007:00 PM | 09:009:00 AM +1 day | |
| 20:008:00 PM | 10:0010:00 AM +1 day | |
| 21:009:00 PM | 11:0011:00 AM +1 day | |
| 22:0010:00 PM | 12:0012:00 PM +1 day | |
| 23:0011:00 PM | 13:001:00 PM +1 day |
Quick conversion examples
These examples use EST (UTC-5) and Seoul (UTC+9); choosing a date applies the local clock changes.
Conversion formula: Seoul = EST + 14h · EDT + 13h.
| EST | Seoul |
|---|---|
| 6:00 AM EST | = 8:00 PM Seoul |
| 7:00 AM EST | = 9:00 PM Seoul |
| 8:00 AM EST | = 10:00 PM Seoul |
| 9:00 AM EST | = 11:00 PM Seoul |
| 10:00 AM EST | = 12:00 AM Seoul (+1 day) |
| 12:00 PM EST | = 2:00 AM Seoul (+1 day) |
| 3:00 PM EST | = 5:00 AM Seoul (+1 day) |
| 5:00 PM EST | = 7:00 AM Seoul (+1 day) |
| 6:00 PM EST | = 8:00 AM Seoul (+1 day) |
| 8:00 PM EST | = 10:00 AM Seoul (+1 day) |
Overlapping meeting hours
The 08:00–18:00 working days in EST and Seoul do not overlap on 2026-10-21.
Clock changes on both sides, 2026–2028
EST and Seoul have the following local clock changes in 2026–2028; all times in the table are local to that side.
| Year | EST | Seoul |
|---|---|---|
| 2026 | · 02:00 → 03:00 · 02:00 → 01:00 | No clock changes; UTC+9 all year. |
| 2027 | · 02:00 → 03:00 · 02:00 → 01:00 | No clock changes; UTC+9 all year. |
| 2028 | · 02:00 → 03:00 · 02:00 → 01:00 | No clock changes; UTC+9 all year. |
At the start of 2026, Seoul is 14 hours ahead of EST. The difference changes during the following periods.
- From 2026-03-08 03:00 EDT until 2026-11-01 01:00 EST, Seoul is 13 hours ahead of EDT.
- From 2027-03-14 03:00 EDT until 2027-11-07 01:00 EST, Seoul is 13 hours ahead of EDT.
- From 2028-03-12 03:00 EDT until 2028-11-05 01:00 EST, Seoul is 13 hours ahead of EDT.
Frequently asked questions
What time is 9 AM EST in Seoul?
9:00 AM EST = 11:00 PM Seoul, using UTC-5 and UTC+9. Choose a date above for the seasonal local time.
Does the time difference between EST and Seoul change during the year?
Yes. During 2026–2028: Seoul is 13 hours ahead of EST; Seoul is 14 hours ahead of EST. The clock-change table gives the dates for both sides.
How do I tell whether it is day or night in Seoul?
Read the Seoul clock above: this guide counts 06:00–18:00 local time as daytime and the rest as nighttime, without using sunrise and sunset.
What is the best time to call between EST and Seoul?
The 08:00–18:00 working days in EST and Seoul do not overlap.
What is the time difference between EST and Seoul now?
Right now, Seoul is 14 hours ahead of EST. Conversion formula: Seoul = EST + 14h · EDT + 13h.