Session overlap · Japan Standard Time
LSE & NYSE overlap hoursin Tokyo time
Both exchanges are open at the same time between 23:30 and 01:30 Tokyo time, a 2h shared window. LSE trades 17:00–01:30 and NYSE trades 18:30–01:00 in Tokyo time. Both run Monday to Friday, so the overlap occurs on weekdays only.
- 23:30
- Overlap starts (Tokyo)
- 01:30
- Overlap ends (Tokyo)
- 2h
- Shared trading time
Overlap window in Tokyo
23:30–01:30
Japan Standard TimeTimes assume the exchanges’ regular sessions and are converted from exchange local time to Japan Standard Time; holidays and early closes can remove the overlap on a given day.
| Market | Open (Japan Standard Time) | Close (Japan Standard Time) |
|---|---|---|
| LSE | 17:00 | 01:30 |
| NYSE | 18:30 | 01:00 |
How the LSE–NYSE overlap is calculated
The overlap is the intersection of each exchange’s regular trading session after converting both to Japan Standard Time. In this timezone, LSE runs 17:00–01:30 and NYSE runs 18:30–01:00, so both are open together from 23:30 to 01:30 — 2h of shared trading time.
Weekends are excluded, and any full-day holiday or early close on either side shrinks the window for that date. Use the two holiday calendars below before planning a session that relies on the overlap, and check the live open/closed status if you need the current figure rather than the scheduled one.