Complete Guide to Stock Exchange Opening Hours in 2025

Understanding when major global markets open is essential for anyone investing across different regions. Operating hours, the times when various exchanges are open simultaneously, and time zone conversions largely define modern trading strategies.

Why Knowing How Exchanges Operate Matters

In the first few minutes after opening, volatility tends to be high as the market processes accumulated information since the previous close. For active traders, this period presents both opportunity and risk. Additionally, identifying periods when multiple exchanges operate simultaneously allows for better liquidity utilization and increases the chances of executing orders more efficiently.

Those operating internationally need to be familiar with these schedules to synchronize their strategies across different continents. Remember that all times are converted to Brasília Time as a reference, also considering that some countries observe daylight saving time at certain times of the year.

Global Schedule Map: When Each Market Opens

NYSE/NASDAQ (USA - New York)

• Local time: 9:30 – 16:00 (EST)
• BRT time: 10:30 – 17:00

LSE (United Kingdom - London)

• Local time: 8:00 – 16:30 (GMT)
• BRT time: 5:00 – 13:30

Euronext (Europe - Paris/Amsterdam)

• Local time: 9:00 – 17:30 (CET)
• BRT time: 5:00 – 13:30

Chinese Exchanges - Shanghai/Shenzhen

• Local time: 9:30 – 15:00 (CST)
• BRT time: 22:30* – 4:00 (*previous day)

TSE (Japan - Tokyo)

• Local time: 9:00 – 15:00 (JST)
• BRT time: 21:00* – 3:00 (*previous day)

B3 (Brazil - São Paulo)

• Local time: 10:00 – 17:55 (BRT)

NSE/BSE (India - Mumbai)

• Local time: 9:15 – 15:30 (IST)
• BRT time: 1:45 – 8:00

Tadawul (Saudi Arabia - Riyadh)

• Local time: 10:00 – 15:00 (AST)
• BRT time: 4:00 – 9:00

Johannesburg Stock Exchange (South Africa)

• Local time: 9:00 – 17:00 (UTC+2)
• BRT time: 4:00 – 12:00

Important Changes in 2025

India now maintains its fixed time zone (IST UTC+5:30) without seasonal variations. Saudi Arabia has consolidated the adoption of UTC+3, aligning with Gulf markets. Emerging African and Islamic markets are increasing their international relevance, with Tadawul expanding its hours further to attract global investors. The US continues to operate daylight saving time from March to November.

Extended Sessions: Pre-Market and After-Hours

In addition to regular hours, the US market offers extended sessions. Pre-market trading occurs from 4:00 – 9:30 (EST), or 6:00 – 11:30 (BRT). Brazil has also extended its after-market session until 19:00, allowing better synchronization with Asian markets.

Overlap Windows: Where Is the Biggest Action?

USA + Europe: 10:30 – 13:30 (BRT) – NYSE and LSE operating simultaneously, generating volume peaks.

Asia + Europe: 21:00 – 3:00 (BRT) – Tokyo and London in shared partial hours.

Brazil + USA: 10:30 – 17:00 (BRT) – Peak movement period on B3 when both markets overlap.

B3 Operational Calendar in 2025

Starting March 10, 2025, the Brazilian exchange operates with the following hours:

• Spot and Fractional Market: 10:00 – 16:55
• Futures Market: 10:00 – 17:25
• Options Market: 10:00 – 16:55
• Ibovespa Futures and Mini-Index Contracts: 9:00 – 18:25
• Dollar Futures and Mini-Exchange Contracts: 9:00 – 18:30

These adjustments aim to synchronize the Brazilian market with international operations, favoring arbitrage strategies and asset trading flows.

There are no operations on dates such as January 1st, Carnival (March 4), and Christmas. Note that these hours may change due to adjustments in holiday calendars or special events, so it is advisable to periodically check official B3 notices.

Practical Tips for Trading in Multiple Markets

Monitoring the opening times of global exchanges allows for strategic planning across different time zones. Overlap periods offer higher liquidity and lower spreads. For those seeking international diversification, knowing these windows is essential to optimize order execution and reduce operational costs.