2025 U.S. Stock Market Closing and Opening Times at a Glance: The Ultimate Trading Hours Guide for Investors

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Why Are US Stock Market Trading Hours Important?

For investors trading US stocks, accurate trading hours and stock market holiday information are essential. Due to daylight saving time and the time difference with Korea, misunderstanding trading hours can lead to missed investment opportunities or unexpected losses. This article covers the regular trading hours of the US stock market, pre-market and after-hours trading times, stock market holidays, and trading hours of major global exchanges.

Understanding Major US Stock Exchanges

The US stock market consists of three major exchanges.

New York Stock Exchange(NYSE) was established in 1792 and is the largest stock exchange in the world, listing approximately 2,400 companies(with a market capitalization of about $23 trillion). Traditional large corporations like Berkshire Hathaway, Johnson & Johnson, Visa, and Walmart are mainly traded here.

NASDAQ Stock Market(NASDAQ) was founded in 1971 and is the second-largest exchange globally, home to technology giants like Apple, Microsoft, and Nvidia. It started as an over-the-counter market but quickly grew into a recognized on-exchange market.

American Stock Exchange(AMEX) primarily lists mid-sized and small companies, showing different characteristics from the large-cap-focused NYSE.

Regular Trading Hours and Pre/Post-Market Trading in the US

All three major US exchanges operate during the same trading hours.

Regular Trading Hours(Regular Trading Hours)

  • Eastern Time: 09:30~16:00
  • Korea Time: 23:30~06:00 (During daylight saving time: 22:30~05:00)

Pre-Market Trading(Pre-Market Trading)

  • Eastern Time: 04:00~09:30
  • Korea Time: 18:00~23:30 (During daylight saving time: 17:00~22:30)

After-Hours Trading(After-Hours Trading)

  • Eastern Time: 16:00~20:00
  • Korea Time: 06:00~10:00 the next day (During daylight saving time: 05:00~09:00)

Note that daylight saving time begins on the second Sunday in March at 2 AM and ends on the first Sunday in November at 2 AM, causing trading hours to shift one hour earlier. Since US stock markets operate during nighttime hours in Korea, it is crucial to consider this when developing trading strategies requiring real-time responses.

US Stock Market Trading Regulations

All three US exchanges trade in US dollars(USD), with settlement completed 2 business days later. The trading unit is 1 share.

The most important difference is that there are no price limit bands. Unlike the Korean stock market, which has price limits to control rapid declines, the US market does not impose such restrictions. Therefore, sudden market volatility during nighttime hours in Korea can be difficult to respond to quickly, so careful planning is necessary. Fees vary depending on the brokerage or intermediary.

Complete Guide to US Stock Market Holidays in 2025

US stock market holidays(Market Holidays) directly impact investment planning. Below are the stock market holidays for 2025.

Date (US Standard) Holiday Reason
January 1 (Wed) New Year’s Day
January 9 (Thu) National Day of Mourning for former President Jimmy Carter
January 20 (Mon) Martin Luther King Jr. Day
February 17 (Mon) Presidents’ Day
April 18 (Fri) Good Friday
May 26 (Mon) Memorial Day
June 19 (Thu) Juneteenth Day
July 4 (Fri) Independence Day
September 1 (Mon) Labor Day
November 27 (Thu) Thanksgiving Day
December 25 (Thu) Christmas Day

Precautions for Early Closure Days in the US Stock Market

In addition to the above holidays, the US stock market also closes early on certain dates. The schedule for 2025 is as follows.

Date (US Standard) Reason Korea Time Market Close
July 3 (Thu) Day before Independence Day 2 AM next day
November 28 (Fri) Day after Thanksgiving 3 AM next day
December 24 (Wed) Christmas Eve 3 AM next day

On early close days, regular trading hours(Eastern Time 09:30~16:00) end at 1 PM, so trading plans should be adjusted accordingly.

Comparison of Trading Hours of Major Global Stock Markets

For investors trading stocks in countries like Korea, Japan, UK, China, and Hong Kong, here is a summary of their trading hours.

Stock Exchange Local Time Korea Time
Korea Exchange 09:00~15:30 09:00~15:30
Tokyo Stock Exchange 09:00~15:00 (Break 11:30~12:30) 10:00~16:00 (Break 12:30~13:30)
London Stock Exchange 08:00~16:30 17:00~01:30 (During daylight saving: 16:00~00:30)
Hong Kong Stock Exchange 09:30~16:00 (Break 12:00~13:00) 10:30~17:00 (Break 13:00~14:00)
Shanghai Stock Exchange 09:30~15:00 (Break 11:30~13:00) 10:30~16:00 (Break 12:30~14:00)

Precautions When Developing Investment Strategies

Understanding the exact trading hours and stock market holidays of the US is the first step toward successful investing. Always be aware of time differences with Korea and changes due to daylight saving time. Also, since there are no price limits, unexpected large losses can occur, so it is recommended to establish comprehensive risk management strategies before trading.

Since trading hours and market holidays can change, always check the latest information and plan your investments accordingly.

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