Time Difference Between Seongnam-si and London
London is 8 hours behind Seongnam-si.
South Korea
Seongnam-si
Asia/Seoul · UTC+9
United Kingdom
London
Europe/London · UTC+1
Best Times to Meet
Hours where standard working time (9 AM – 6 PM) overlaps in both Seongnam-si and London.
Seongnam-si
5:00 PM
London
9:00 AM
Seongnam-si to London — 24-Hour Conversion
Each row shows the equivalent local time in London for an hour in Seongnam-si. Working-hours rows (9–18) are highlighted.
| Seongnam-si | London | Match |
|---|---|---|
| -1 day | Workday in London | |
| -1 day | Workday in London | |
| -1 day | Off hours | |
| -1 day | Off hours | |
| -1 day | Off hours | |
| -1 day | Off hours | |
| -1 day | Off hours | |
| -1 day | Off hours | |
| Off hours | ||
| Workday in Seongnam-si | ||
| Workday in Seongnam-si | ||
| Workday in Seongnam-si | ||
| Workday in Seongnam-si | ||
| Workday in Seongnam-si | ||
| Workday in Seongnam-si | ||
| Workday in Seongnam-si | ||
| Workday in Seongnam-si | ||
| Best for meetings | ||
| Workday in London | ||
| Workday in London | ||
| Workday in London | ||
| Workday in London | ||
| Workday in London | ||
| Workday in London |
Frequently Asked Questions
What is the time difference between Seongnam-si and London?
London, United Kingdom (UTC+1) is 8 hours behind Seongnam-si, South Korea (UTC+9).
What is the best time to schedule a meeting between Seongnam-si and London?
The best meeting times overlap when both cities are within standard working hours (9 AM – 6 PM). The full hour-by-hour table on this page lists every overlap window.
Does daylight saving time change the difference between Seongnam-si and London?
Yes — when one city observes daylight saving time and the other does not, the gap shifts by an hour. The conversion table on this page reflects the current offset, including any active DST.
When it is 9 AM in Seongnam-si, what time is it in London?
Use the conversion table on this page — every hour in Seongnam-si is mapped to its equivalent local time in London, including day shift markers when the date differs.