A Yokohama-based trader needs to speak with a counterpart in Hong Kong before the morning fix. The Tokyo Stock Exchange (TSE) opens at 09:00 JST. That is 08:00 in Hong Kong. You have a 2.5-hour window before the TSE morning break.
Here is the full TSE schedule from a Yokohama desk, including which global markets share usable hours and which never do.
TSE Trading Hours at a Glance
The Tokyo Stock Exchange runs two trading periods each weekday. Japan does not observe daylight saving time, so these times are fixed year-round at UTC+9.
| Period | Local Time (JST) | UTC |
|---|---|---|
| Morning | 09:00-11:30 | 00:00-02:30 |
| Afternoon | 12:30-15:00 | 03:30-06:00 |
The exchange closes on weekends and Japan public holidays.
When Does the TSE Open in Yokohama?
The morning period starts at 09:00 JST. In Yokohama, that is 09:00 sharp.
This window runs concurrently with the full trading day in three major Asian markets:
- Hong Kong (HKT, UTC+8): 08:00-10:30
- Singapore (SGT, UTC+8): 08:00-10:30
- Shanghai (CST, UTC+8): 08:00-10:30
If you are coordinating with a desk in one of those cities, the morning window gives you 2.5 hours of shared trading time.
When Does the TSE Close in Yokohama?
The afternoon period runs 12:30-15:00 JST. This is the second window for trading and the only time the TSE is open during European business hours.
The afternoon period overlaps with:
- Hong Kong, Singapore, Shanghai (all UTC+8): 11:30-14:00, still within their working day.
- Sydney (AEST, UTC+10 in July): 13:30-16:00, a partial overlap.
- London (BST, UTC+1 in July): 04:30-07:00, summer morning, before the London open.
- New York (EDT, UTC-4 in July): 23:30-02:00, overnight.
How TSE Hours Overlap with Other Asian Markets
Because Japan, Hong Kong, Singapore, and mainland China are all within one hour of each other, the TSE’s entire trading day falls inside the business day for those markets.
| Market | Local Time During TSE Morning (09:00-11:30 JST) |
|---|---|
| Hong Kong | 08:00-10:30 HKT |
| Singapore | 08:00-10:30 SGT |
| Shanghai | 08:00-10:30 CST |
| Sydney (July) | 10:00-12:30 AEST |
Can You Trade NYSE or London Stock Exchange from Yokohama During TSE Hours?
No. The TSE trading hours do not coincide with the regular trading sessions of the New York Stock Exchange (NYSE) or the London Stock Exchange.
- New York: The NYSE opens at 09:30 ET. In summer that is 13:30 JST; in winter, 14:30 JST. By the time New York opens, the TSE afternoon period has only 1.5 hours left (winter) or is already closed (summer). There is no meaningful overlap.
- London: The London Stock Exchange opens at 08:00 GMT/BST. In winter (GMT), London opens at 17:00 JST, 2 hours after the TSE closes. In summer (BST), London opens at 16:00 JST, 1 hour after the TSE closes. No overlap.
Anyone in Yokohama needing to trade on the NYSE or London Stock Exchange must trade during those exchanges’ own hours, not during TSE hours.
Forex Tokyo Hours: 09:00-18:00 JST
The forex Tokyo window is broader than the TSE window. It runs 09:00-18:00 JST, covering the entire TSE trading day plus an additional three hours.
| Forex Window | Local Time (JST) |
|---|---|
| Tokyo | 09:00-18:00 |
| London (summer) | 08:00-17:00 BST |
| London (winter) | 07:00-16:00 GMT |
When Does the Tokyo Forex Window Overlap with London?
The forex Tokyo window coincides with the London forex window for only 2 hours.
- Summer (BST, UTC+1): London opens at 08:00 BST = 16:00 JST. Shared window: 16:00-18:00 JST.
- Winter (GMT, UTC+0): London opens at 08:00 GMT = 17:00 JST. Shared window: 17:00-18:00 JST.
That is a narrow window. If you need to execute a forex trade between Tokyo and London, you have one hour in winter, two in summer.
Who should adjust their default schedule? A forex trader in Yokohama who typically waits until the afternoon to act. The Tokyo, London forex overlap is only 16:00-18:00 JST in summer, 17:00-18:00 JST in winter. If you miss that window, you wait until the next day. Move your forex activity to the last hour of the Tokyo window.