Why market hours matter for traders
The NYSE closes at 16:00 Eastern. In Tokyo, that is 05:00 JST the next calendar day during standard time. Place a market-on-close order from Japan and you are working through the night.
The three major stock exchanges (NYSE, LSE, TSE) each run fixed local hours. Forex never closes, but liquidity and volatility peak during specific session overlaps. Miss the window and you trade against thinner books.
What time does the NYSE open and close?
The New York Stock Exchange opens at 9:30 and closes at 16:00 Eastern Time. That is 14:30-21:00 UTC during Eastern Standard Time (UTC-5) and 13:30-20:00 UTC during Eastern Daylight Time (UTC-4).
| NYSE Session | Local Time (ET) | UTC (EST) | UTC (EDT) |
|---|---|---|---|
| Open | 09:30 | 14:30 | 13:30 |
| Close | 16:00 | 21:00 | 20:00 |
Eastern Time switches between EST and EDT on the second Sunday of March and the first Sunday of November. Check the Time Zone Converter for the current offset.
When does the London Stock Exchange trade?
The London Stock Exchange opens at 08:00 and closes at 16:30 GMT. During British Summer Time (last Sunday of March to last Sunday of October), local clocks shift forward. The session then runs 07:00-15:30 UTC.
| LSE Session | Local Time | UTC (GMT) | UTC (BST) |
|---|---|---|---|
| Open | 08:00 GMT / 09:00 BST | 08:00 | 07:00 |
| Close | 16:30 GMT / 17:30 BST | 16:30 | 15:30 |
London and New York share a direct window. When both exchanges are open, trading volume is highest.
When does the Tokyo Stock Exchange trade?
The Tokyo Stock Exchange opens at 09:00 and closes at 15:00 Japan Standard Time (UTC+9). Japan does not observe daylight saving time.
| TSE Session | Local Time (JST) | UTC |
|---|---|---|
| Open | 09:00 | 00:00 |
| Close | 15:00 | 06:00 |
The TSE session ends before the LSE opens. There is no direct window between Tokyo and London trading hours. A trader in Tokyo wanting to trade on the LSE must wait until 17:00 JST (08:00 GMT) when London opens.
Forex: 24-hour market with key session windows
The forex market never closes. It opens Sunday at 22:00 GMT and closes Friday at 22:00 GMT. Within that continuous session, three major trading sessions drive liquidity:
- Asian session (Tokyo, Singapore, Hong Kong): 00:00-09:00 GMT
- European session (London, Frankfurt, Zurich): 07:00-16:00 GMT
- American session (New York, Chicago, Toronto): 12:00-21:00 GMT
Each session has its own volatility patterns. The Asian session sees the yen and Australian dollar. The European session drives the euro and sterling. The American session moves the US dollar and Canadian dollar.
London-New York window: the most active hours
The window where the European and American sessions coincide runs from 13:00 to 17:00 GMT. That is 08:00-12:00 Eastern Time and 14:00-18:00 Central European Time.
This four-hour window sees the highest trading volume in the forex market. Both the LSE and NYSE are open. The Bank of England and the Federal Reserve both release data during these hours. Bid-ask spreads narrow. Slippage drops.
If you trade currency pairs involving the US dollar, euro, or sterling, this is the window to execute orders. Outside it, liquidity is thinner.
Using the time zone converter for market hours
A Time Zone Converter solves the core problem: what time is it in New York when you are in Tokyo? Enter "New York" and "Tokyo" and the tool shows the current offset and the clock time for each city.
For recurring trades, set the converter to a specific date. The converter accounts for DST changes. A meeting scheduled for 10:00 ET on the second Monday of March may fall during EDT or EST depending on the year. The converter checks the IANA time zone database for the correct offset on that exact date.
To calculate the end of a trading session, use the Duration Calculator. If the NYSE closes in 3 hours 45 minutes from now, the duration calculator gives you the exact wall-clock time.