The time difference between Washington DC and Seoul is 13 hours. When it is 12:00 noon in Washington DC, it is 01:00 in Seoul. Washington DC uses the America/New_York time zone (UTC-4), while Seoul uses Asia/Seoul (UTC+9).
| Detail | Washington DC | Seoul |
|---|---|---|
| Time Zone ID | America/New_York | Asia/Seoul |
| UTC Offset | UTC-4 | UTC+9 |
| Abbreviation | EDT | KST |
| DST Active | Yes — currently observing | No |
| Country | United States | South Korea |
| Region | North America | Asia |
With a 13 hours gap, there is no standard business-hours overlap between Washington DC and Seoul. One party will need to adjust their schedule. Early mornings in Seoul or late evenings in Washington DC tend to be the most practical compromise.
Use this table to quickly convert any hour from Washington DC time to Seoul time. Rows highlighted in green indicate overlapping business hours in both cities.
| Washington DC | Seoul | |
|---|---|---|
| 00:00 | 13:00 | Night |
| 01:00 | 14:00 | Night |
| 02:00 | 15:00 | Night |
| 03:00 | 16:00 | Night |
| 04:00 | 17:00 | Night |
| 05:00 | 18:00 | Night |
| 06:00 | 19:00 | |
| 07:00 | 20:00 | |
| 08:00 | 21:00 | |
| 09:00 | 22:00 | |
| 10:00 | 23:00 | |
| 11:00 | 00:00 (+1 day) | |
| 12:00 | 01:00 (+1 day) | |
| 13:00 | 02:00 (+1 day) | |
| 14:00 | 03:00 (+1 day) | |
| 15:00 | 04:00 (+1 day) | |
| 16:00 | 05:00 (+1 day) | |
| 17:00 | 06:00 (+1 day) | |
| 18:00 | 07:00 (+1 day) | |
| 19:00 | 08:00 (+1 day) | |
| 20:00 | 09:00 (+1 day) | |
| 21:00 | 10:00 (+1 day) | |
| 22:00 | 11:00 (+1 day) | Night |
| 23:00 | 12:00 (+1 day) | Night |
Washington DC is currently observing daylight saving time, while Seoul is on standard time. When Washington DC switches back to standard time, the difference between these two cities will shift by 1 hour.
The time difference is 13 hours. Seoul is 13 hours ahead of Washington DC.
Yes. One of these cities observes DST while the other does not, so the difference shifts by 1 hour when DST begins or ends.
There is no ideal window during standard business hours. Consider scheduling at the edges — early morning for the city that is ahead and late afternoon for the city that is behind.
Add 13 hours to Washington DC time to get Seoul time. Use the hour-by-hour table above for a quick reference.
For sunrise and sunset data, visit TheSunsetTimes.com. For detailed DST schedules, see DaylightSavingTime.info.