Time difference: 16 hours
Visualizing the Working Hours Gap
No direct 9 AM-5 PM business-hours overlap. Use the 24-hour table below for the closest windows.
No direct 9 AM-5 PM overlap. See the 24-hour table below for the closest windows.
Try the Interactive Dial Planner
Drag to scrub through 24 hours. Live DST-accurate Temporal API logic.
| UTC | 🇺🇸 Seattle | 🇰🇷 Seoul |
|---|---|---|
| 00:00 | 5:00 PM | 9:00 AM |
| 01:00 | 6:00 PM | 10:00 AM |
| 02:00 | 7:00 PM | 11:00 AM |
| 03:00 | 8:00 PM | 12:00 PM |
| 04:00 | 9:00 PM | 1:00 PM |
| 05:00 | 10:00 PM | 2:00 PM |
| 06:00 | 11:00 PM | 3:00 PM |
| 07:00 | 12:00 AM | 4:00 PM |
| 08:00 | 1:00 AM | 5:00 PM |
| 09:00 | 2:00 AM | 6:00 PM |
| 10:00 | 3:00 AM | 7:00 PM |
| 11:00 | 4:00 AM | 8:00 PM |
| 12:00 | 5:00 AM | 9:00 PM |
| 13:00 | 6:00 AM | 10:00 PM |
| 14:00 | 7:00 AM | 11:00 PM |
| 15:00 | 8:00 AM | 12:00 AM |
| 16:00 | 9:00 AM | 1:00 AM |
| 17:00 | 10:00 AM | 2:00 AM |
| 18:00 | 11:00 AM | 3:00 AM |
| 19:00 | 12:00 PM | 4:00 AM |
| 20:00 | 1:00 PM | 5:00 AM |
| 21:00 | 2:00 PM | 6:00 AM |
| 22:00 | 3:00 PM | 7:00 AM |
| 23:00 | 4:00 PM | 8:00 AM |
What is the best time to schedule a meeting between Seattle and Seoul?
There is no direct 9 AM to 5 PM business-hours overlap between Seattle (UTC-7) and Seoul (UTC+9) given the 16 hours time difference. The best approach is to schedule early morning in Seoul or use a rotating schedule so neither team always takes the off-hours slot.
What is the time difference between Seattle and Seoul?
Seattle operates on UTC-7 and Seoul operates on UTC+9, giving a time difference of 16 hours. This may shift by one hour during daylight saving time transitions.
When it is 9:00 AM in Seattle, what time is it in Seoul?
When it is 9:00 AM in Seattle (UTC-7), it is 1:00 AM in Seoul (UTC+9).
What are the working hours of Seattle expressed in Seoul local time?
A standard Seattle workday of 9 AM to 5 PM (UTC-7) corresponds to 1:00 AM to 9:00 AM local time in Seoul (UTC+9).
Does daylight saving time affect the time difference between Seattle and Seoul?
Yes. If either city observes daylight saving time (DST), the gap can shift by one hour during clock-change weekends. Always verify current UTC offsets with a live tool before scheduling important calls.
What is the UTC time for the Seattle to Seoul overlap window?
There is no shared 9 AM to 5 PM UTC window for this pair. The closest option is 4:00 PM UTC (9 AM in Seattle), which corresponds to 1:00 AM local time in Seoul.