Time difference
Seoul to Washington DC Time Difference
Washington DC is 13 hours behind Seoul — when it's 12:00 PM in Seoul, it's 11:00 PM the previous day in Washington DC. (Seoul (Asia/Seoul, KST); Washington DC (America/New_York, EDT).) Below: live local times, the best hours for a call, a full conversion table, and exact daylight-saving dates.
Washington DC is 13 hours behind Seoul. Standard 9 AM–5 PM business hours in Seoul and Washington DC do not overlap, so a live call needs one side outside normal hours. Clocks change on November 1, 2026, which briefly shifts the gap between Seoul and Washington DC — the converter on this page always reflects the correct offset for the date you pick.
- When it's 9:00 AM in Seoul, it's 8:00 PM the previous day in Washington DC.
- When it's 9:00 AM in Washington DC, it's 10:00 PM in Seoul.
Washington DC is currently 13 hours behind Seoul.
Interactive converter
12:00PM
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Best times to meet
Standard 9 AM – 5 PM hours in Seoul and Washington DC do not overlap. The least-bad options are an early start in one city or a late evening call in the other — for example a 7–8 AM meeting in Seoul, or a 6–8 PM meeting in Washington DC.
Quick conversion table
| Seoul | Washington DC |
|---|---|
| 12 AM | 11:00 AM (prev day) |
| 1 AM | 12:00 PM (prev day) |
| 2 AM | 1:00 PM (prev day) |
| 3 AM | 2:00 PM (prev day) |
| 4 AM | 3:00 PM (prev day) |
| 5 AM | 4:00 PM (prev day) |
| 6 AM | 5:00 PM (prev day) |
| 7 AM | 6:00 PM (prev day) |
| 8 AM | 7:00 PM (prev day) |
| 9 AM | 8:00 PM (prev day) |
| 10 AM | 9:00 PM (prev day) |
| 11 AM | 10:00 PM (prev day) |
| 12 PM | 11:00 PM (prev day) |
| 1 PM | 12:00 AM |
| 2 PM | 1:00 AM |
| 3 PM | 2:00 AM |
| 4 PM | 3:00 AM |
| 5 PM | 4:00 AM |
| 6 PM | 5:00 AM |
| 7 PM | 6:00 AM |
| 8 PM | 7:00 AM |
| 9 PM | 8:00 AM |
| 10 PM | 9:00 AM |
| 11 PM | 10:00 AM |
Daylight saving
On November 1, 2026, Washington DC shifts for daylight saving. After that, Washington DC will be 14 hours behind Seoul (currently 13 hours behind Seoul). The converter and the tables above always reflect the correct offset for the date you pick.
- Seoul does not observe daylight saving time.
- Washington DC is currently observing daylight saving time.
Frequently asked questions
- Is Washington DC ahead of or behind Seoul?
- Washington DC is 13 hours behind Seoul.
- How many hours behind Seoul is Washington DC?
- Washington DC is 13 hours behind Seoul.
- What time is 9 AM in Seoul in Washington DC?
- 9:00 AM in Seoul is 8:00 PM the previous day in Washington DC.
- What time is noon in Seoul in Washington DC?
- 12:00 PM in Seoul is 11:00 PM the previous day in Washington DC.
- What time is 5 PM in Seoul in Washington DC?
- 5:00 PM in Seoul is 4:00 AM in Washington DC. Useful for end-of-day handoffs between the two offices.
- What time is 3 PM in Seoul in Washington DC?
- 3:00 PM in Seoul is 2:00 AM in Washington DC.
- Is Seoul currently observing daylight saving time?
- Seoul does not observe daylight saving time — its UTC offset stays the same all year.
- Is Washington DC currently observing daylight saving time?
- Washington DC is currently observing daylight saving time (summer time).
- Do Seoul and Washington DC observe daylight saving?
- On November 1, 2026, Washington DC shifts for daylight saving. After that, Washington DC will be 14 hours behind Seoul (currently 13 hours behind Seoul). The converter and the tables above always reflect the correct offset for the date you pick.
- When is the best time to call Washington DC from Seoul?
- Seoul and Washington DC business hours don't overlap. The closest options are early mornings in Seoul or late evenings, when one side stretches outside 9–5.
- When is the best time to call Seoul from Washington DC?
- Washington DC and Seoul business hours don't overlap. The closest options are early mornings in Washington DC or late evenings, when one side stretches outside 9–5.
- Seoul (KST) to Washington DC (EDT) — how do I convert quickly?
- Subtract 13 hours from Seoul local time to get Washington DC local time. Or use the converter at the top of this page — it stays accurate through daylight-saving changes automatically.
Other conversions
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