2025 US Stock Market Complete Overview: From Trading Hours to US Holidays at a Glance

ZenZKPlayer · 2026-01-06T10:24:23+00:00

The essay provides essential information for Korean investors in U.S. stocks, covering trading hours, holidays, and major exchanges like NYSE and NASDAQ. It emphasizes the importance of understanding time differences and market regulations for successful trading.

ZenZKPlayer

2026-01-06 10:24:23

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Things Every U.S. Stock Investor Must Know

For Korean investors investing in U.S. stocks, it is essential to understand the trading hours and U.S. market holidays accurately. The U.S. has a significant time difference from Korea, and with daylight saving time in effect, you may miss trading opportunities if not careful. Especially on U.S. market holidays, trading is completely unavailable, so you must consider this when planning your investments.

This guide summarizes information about major U.S. stock exchanges, regular trading hours, after-hours trading, and all U.S. market holidays through 2025. Conversion times based on Korean time are also provided to help you plan real-time trading.

Understanding the 3 Major U.S. Stock Exchanges at a Glance

New York Stock Exchange (NYSE) - Symbol of History and Scale

NYSE, established in 1792, is the world’s largest stock exchange. About 2,400 companies are listed, with a total market capitalization of approximately $23 trillion. It mainly lists traditional large companies such as Berkshire Hathaway, Johnson & Johnson, Visa, and Walmart.

NASDAQ Stock Market (NASDAQ) - Center of Tech Stocks

Founded in 1971, NASDAQ is the second-largest stock exchange globally and is a primary listing venue for IT and growth companies. Global tech giants like Apple, Microsoft, and NVIDIA are concentrated here.

American Stock Exchange (AMEX) - Stage for Mid and Small Cap Companies

AMEX is the third major U.S. exchange, listing mid-sized and small companies, as well as new enterprises, contrasting with NYSE’s focus on large corporations.

2025 U.S. Stock Market Trading Schedule and Regulations

Regular Trading Hours and After-Hours Trading

All three exchanges operate on the same trading schedule:

Trading Session	Eastern Time	Korea Time
Pre-market	04:00~09:30	18:00~23:30 (17:00~22:30)*
Regular Market	09:30~16:00	23:30~06:00 (22:30~05:00)*
After-hours	16:00~20:00	Next day 06:00~10:00 (05:00~09:00)*

*Daylight Saving Time applies from the second Sunday in March to the first Sunday in November.

( Key Features of Trading Regulations

A significant characteristic of the U.S. stock market is the absence of price limit bands. Unlike Korea, there are no circuit breakers during sharp declines, so quick stop-loss orders are crucial during nighttime trading based on Korea time. All trades are conducted in U.S. dollars)USD###, with settlement completed two business days later.

Complete List of U.S. Market Holidays in 2025

The U.S. stock market has several holidays throughout the year. It is important to be aware of these holidays in advance to avoid trading disruptions:

Date	Reason
January 1 (Wed)	New Year’s Day
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
July 4 (Fri)	Independence Day
September 1 (Mon)	Labor Day
November 27 (Thu)	Thanksgiving Day
December 25 (Thu)	Christmas Day

( Early Market Close Days

On certain dates, the market closes early even though it is not a holiday:

July 3 )Thu(: Day before Independence Day → Closes at 1:00 PM Eastern Time
November 28 )Fri###: Day after Thanksgiving → Closes at 1:00 PM Eastern Time
December 24 (Wed): Christmas Eve → Closes at 1:00 PM Eastern Time

Comparison of Major Global Stock Market Trading Hours

If you trade stocks in other countries as well, refer to the following:

Exchange	Local Time	Korea Time
Korea Exchange	09:00~15:30	09:00~15:30
Tokyo Stock Exchange	09:00~15:00 (11:30~12:30 Closed)	-
London Stock Exchange	08:00~16:30	17:00~01:30 (16:00~00:30)*
Hong Kong Stock Exchange	09:30~16:00 (12:00~13:00 Closed)	10:30~17:00 (13:00~14:00 Closed)
Shanghai Stock Exchange	09:30~15:00 (11:30~13:00 Closed)	10:30~16:00 (12:30~14:00 Closed)

*Daylight Saving Time applies

Final Tips for Successful U.S. Stock Trading

Understanding the exact trading hours, holidays, and regulations of the U.S. stock market is the first step toward successful investing. Keep in mind that after-hours trading occurs in Korea time and there are no price limit bands. Develop your trading strategies accordingly. Since exchange schedules can change, always check the latest official information to stay updated.

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