Seoul to Shanghai: time difference and best times to meet
Shanghai is 1 hour behind Seoul. Their working days overlap for 8 hours, from 10am to 6pm in Seoul (9am–5pm in Shanghai). The best time to schedule is 2pm Seoul time, which is 1pm in Shanghai.
Asia/Seoul
Asia/Shanghai
Hour-by-hour overlap
Each row is one hour of the Seoul day and the matching hour in Shanghai. Adjust the working hours to match how your team actually works.
| Seoul | Shanghai | Suitable? |
|---|---|---|
| 9am | 8am | Working hours in Seoul only |
| 10am | 9am | Both cities at work |
| 11am | 10am | Both cities at work |
| 12pm | 11am | Both cities at work |
| 1pm | 12pm | Both cities at work |
| 2pm | 1pm | Both cities at work |
| 3pm | 2pm | Both cities at work |
| 4pm | 3pm | Both cities at work |
| 5pm | 4pm | Both cities at work |
| 6pm | 5pm | Working hours in Shanghai only |
Best times to propose
- 1. 2pm in Seoul · 1pm in Shanghai — Comfortable mid-day slot on both sides
- 2. 3pm in Seoul · 2pm in Shanghai — Comfortable mid-day slot on both sides
- 3. 1pm in Seoul · 12pm in Shanghai — Overlaps lunch on one side
Avoid 9am Seoul time and 6pm Seoul time — inside working hours locally but outside them for the other city.
Daylight saving
The difference between Seoul and Shanghai stays at 1 hour behind for the whole of the next twelve months — neither side's clock change affects this pair.
Public holidays to avoid
Dates where one side is off work while the other is not are the most common cause of no-shows on this route.
- Thursday, September 24, 2026 — Chuseok — Seoul is off, Shanghai is working.
- Friday, September 25, 2026 — Chuseok and Mid-Autumn Festival; both cities are off.
- Saturday, September 26, 2026 — Chuseok — Seoul is off, Shanghai is working.
- Thursday, October 1, 2026 — National Day — Shanghai is off, Seoul is working.
- Monday, October 5, 2026 — National Foundation Day — Seoul is off, Shanghai is working.
- Friday, October 9, 2026 — Hangul Day — Seoul is off, Shanghai is working.
- Friday, December 25, 2026 — Christmas Day — Seoul is off, Shanghai is working.
With 8 shared working hours, Seoul and Shanghai can run standing meetings without anyone giving up an evening — as long as the slot sits inside that window on both sides of the next clock change.
Sending a booking link avoids the arithmetic entirely: each side picks a time in their own zone and both calendars get the correct local time, including after a daylight-saving change. See how LemCall handles cross-timezone bookings.
Frequently asked questions
- What is the time difference between Seoul and Shanghai?
- Shanghai is currently 1 hour behind Seoul. Neither city changes its clocks over the next twelve months, so the gap stays fixed.
- When is the best time to schedule a meeting between Seoul and Shanghai?
- 2pm in Seoul, which is 1pm in Shanghai. Comfortable mid-day slot on both sides.
- How many hours do Seoul and Shanghai overlap?
- 8 hours, from 10am to 6pm Seoul time (9am–5pm in Shanghai).
- Are there public holidays that affect Seoul–Shanghai meetings?
- Yes. The next is Thursday, September 24, 2026 — a public holiday where Seoul is, but a normal working day in Shanghai.
Nearby pairs
Other meeting-time pages for Seoul
Sources
- 1.IANA. Time Zone Database
- 2.Nager.Date. Public holidays API · Retrieved