Select Exchanges
24-Hour Timeline (UTC)
Trading Overlaps
Found 9 overlaps between selected exchanges.
Key Market Overlap Windows
These are the most important overlap periods that global traders monitor daily.
London + New York
The most liquid overlap in global equities. Both major centers are active, driving peak volume for cross-listed stocks and ETFs.
Tokyo + Hong Kong
The primary Asian overlap window. Key for pan-Asian equities and regional ETFs with dual listings.
London + Hong Kong
A brief morning overlap connecting European and Asian markets, important for companies listed on both HKEX and LSE.
New York + Toronto
Nearly identical hours. Canadian-US dual-listed stocks trade with deep liquidity throughout the full session.
Why Market Overlaps Matter
When two or more major stock exchanges are open at the same time, trading volume surges and bid-ask spreads narrow. These overlap windows are the most active periods in global markets, offering traders the best price discovery and deepest liquidity pools of the day.
London–New York Overlap
The most significant overlap occurs when London and New York are both open, typically from 9:30 AM to 11:30 AM ET (13:30–16:30 UTC). During this window, roughly 50% of all daily forex trading volume occurs, and equities cross-listed on NYSE and LSE see their tightest spreads. Many institutional traders specifically time large block orders for this period.
Asian Session Overlaps
Asian markets overlap when Tokyo, Hong Kong, Shanghai, and Singapore are all open. The Tokyo–Hong Kong overlap (approximately 9:30 AM–11:30 AM HKT / 9:00 AM–11:30 AM JST) is particularly significant for investors in pan-Asian funds and dual-listed Chinese companies.
How to Use This Tool
Select the exchanges you trade on using the buttons above. The 24-hour timeline shows when each market is open (in UTC), and the overlap results below list every window where your selected markets trade simultaneously. All times are automatically converted to your local timezone for easy reference.