The Bakery That Opens at 9:30
The bakery around the corner from my apartment has a strange schedule. The staff is already inside by 5:30am. I can see lights on, ovens going, deliveries being unloaded. The public does not walk in until exactly 9:00am. The real rush hits between 10am and noon. By 4pm the shelves are mostly empty and the staff is cleaning up. By 8pm the building is dark.
The stock market works almost exactly the same way. There is a window when the doors are officially open to everyone. There is a longer window when pros and professionals are already working behind the scenes. And there is a clear time when the day ends and things close down for the night.
Most traders, especially new ones, only know about the middle window. They think “the market is open from 9:30 to 4.” That is true for the main doors. It is not the whole picture, and knowing the rest is what separates a casual retail trader from someone who understands the rhythm of a trading day.
This article covers everything about when the US stock market opens and closes, including the parts that most articles skip.
The Quick Answer: US Stock Market Hours
If you just need the numbers, here they are.
| Session | Time (Eastern Time) | Duration |
|---|---|---|
| Pre-market trading | 4:00am to 9:30am ET | 5.5 hours |
| Regular session | 9:30am to 4:00pm ET | 6.5 hours |
| After-hours trading | 4:00pm to 8:00pm ET | 4 hours |
| Overnight (closed) | 8:00pm to 4:00am ET | 8 hours |
These hours apply to the two major US stock exchanges: the New York Stock Exchange (NYSE) and the NASDAQ. Both use the same schedule. Both trade Monday through Friday only.
The market is closed every Saturday and Sunday. It is also closed on about nine US federal holidays per year, and it closes early (at 1:00pm ET) on a handful of “half days” like the day after Thanksgiving and Christmas Eve.
For a complete list of closures, see the stock market holidays guide.
Regular Trading Hours: 9:30am to 4:00pm ET
The regular session is the main event. When people say “the stock market is open,” they are almost always talking about this six-and-a-half hour window.
What happens at 9:30am
The opening bell rings at 9:30am Eastern Time, Monday through Friday. The first few minutes are often the most volatile of the day. Overnight news, earnings reports released before the open, and orders that have been piling up overnight all get processed in a burst of activity. Prices can move three, five, ten percent in the first few minutes on active names.
New traders often get crushed in the first fifteen minutes because they think they are catching a trend when they are actually catching noise. Experienced traders often either sit out the opening or trade it with very specific setups designed for that kind of volatility. For a deeper dive on why beginners should be careful around high-volatility moments, read news events are no-trade zones for beginners.
What happens between 9:30am and 10:30am
This is the “opening range” period. It is the most volatile, highest-volume part of the day. Day traders who specialize in this window live for these sixty minutes. Most of the day’s trading volume happens in the first and last hour of the regular session.
What happens between 10:30am and 3:00pm
The midday hours tend to be slower. Volume drops. Moves become choppier. Many professional day traders will either stop trading or significantly reduce size during lunch (roughly 11:30am to 1:30pm ET). The biggest mistakes of the day often happen during midday when boredom leads to forced trades.
What happens between 3:00pm and 4:00pm
The closing hour sees volume pick up again. Big institutional traders who need to rebalance their positions before the close create significant order flow. The last thirty minutes can be as volatile as the opening. The closing auction at 4:00pm itself is a specific event where many index funds execute their daily rebalances.
What happens at 4:00pm
The closing bell rings. The regular session ends. But trading does not actually stop. It just moves to the after-hours session, which most retail traders do not participate in and which operates under different rules.
Pre-Market Trading: 4:00am to 9:30am ET
Before the regular session, there is a long pre-market window. This is where overnight news gets digested, earnings reports get reacted to, and early birds position themselves before the crowd arrives.
Key things to know about pre-market:
- It runs from 4:00am to 9:30am ET, though most brokers only let retail traders participate from around 7:00am or 8:00am onward.
- Volume is low compared to regular session. Wider spreads, less liquidity, bigger slippage risk. Slippage is your hidden enemy is doubly true in pre-market.
- News-driven moves are most common. If a company reported earnings after yesterday’s close, the pre-market is where you see the reaction.
- Not every stock trades pre-market. Illiquid names might have zero volume for hours at a time.
For a full breakdown of extended-hours trading including strategies and broker-specific rules, see pre-market and after-hours trading hours explained.
After-Hours Trading: 4:00pm to 8:00pm ET
After the closing bell, a second extended-hours window opens.
Key things about after-hours:
- It runs from 4:00pm to 8:00pm ET at most brokers, though exact windows vary.
- Volume drops off significantly after about 6:00pm. The busiest after-hours period is the first hour after the close, especially on earnings days.
- This is where earnings reactions happen. A company that beats earnings at 4:05pm can gap up ten percent in after-hours, and the regular session the next morning will open near those after-hours prices.
- Same caveats as pre-market apply. Wider spreads, less liquidity, more risk.
Time Zones: What Time the Market Opens Where You Live
The US stock market hours are set in Eastern Time. Here is the conversion for other US time zones.
| Your Time Zone | Market Opens | Market Closes |
|---|---|---|
| Eastern Time (ET) | 9:30am | 4:00pm |
| Central Time (CT) | 8:30am | 3:00pm |
| Mountain Time (MT) | 7:30am | 2:00pm |
| Pacific Time (PT) | 6:30am | 1:00pm |
| Alaska Time (AKT) | 5:30am | 12:00pm |
| Hawaii Time (HT) | 3:30am | 10:00am |
For pre-market, subtract five and a half hours from the regular open. For after-hours, add four hours to the regular close.
One important note: During daylight saving time transitions (which apply to most of the US but not parts of Arizona or Hawaii), the market schedule stays anchored to Eastern Time. The US usually changes its clocks on the second Sunday in March and the first Sunday in November. If you live in a country that does not observe daylight saving (or observes it on different dates), your local time relative to market hours will shift twice a year.
Is the Stock Market Open Today?
The stock market is open Monday through Friday, unless today is one of these:
- A weekend (Saturday or Sunday)
- A federal holiday (New Year’s Day, MLK Day, Presidents Day, Good Friday, Memorial Day, Juneteenth, Independence Day, Labor Day, Thanksgiving, Christmas)
- An early close day (closes at 1:00pm ET instead of 4:00pm)
When a holiday falls on a weekend, the market usually observes it on the adjacent Friday or Monday. The full stock market holidays guide has the current year’s exact dates.
What About Other US Exchanges?
The two major exchanges (NYSE and NASDAQ) use the 9:30am to 4:00pm schedule. But a few other venues have different or extended hours:
- CBOE (Chicago Board Options Exchange): Options trade 9:30am to 4:00pm ET for most products, with some index options extending to 4:15pm.
- CME futures: Equity index futures (ES, NQ) trade nearly 24 hours, Sunday night through Friday afternoon, with brief maintenance breaks.
- OTC markets: Penny stocks and pink sheets have their own hours, generally overlapping with the regular session.
For most retail traders, only the 9:30 to 4:00 schedule matters. Unless you are trading options into the close or trading futures overnight, the other venues can be ignored.
Why the Hours Matter for Traders
Knowing the hours is one thing. Knowing how to use them is the real skill.
The open is volatile. The lunch hour is quiet. The close is volatile.
The basic shape of any trading day tends to be: volatility at the open (9:30am to 10:30am), reduced volatility at midday (11:30am to 1:30pm), volatility at the close (3:00pm to 4:00pm). This rhythm matters because different strategies work in different parts of the day.
Day traders who specialize in momentum (gap-and-go setups, breakouts, opening range plays) do most of their business in the first hour. Traders who specialize in mean reversion or fade setups often do better in the quieter midday period. Closing-hour traders tend to trade institutional flow and end-of-day rebalancing.
If you are a beginner, the rule I give is: focus on the first ninety minutes and the last ninety minutes. The midday is where beginners give back their morning profits. The specific setups that work during the high-volume windows are covered in day trading strategies for beginners.
Pre-market tells you the mood of the day
I check the pre-market futures every morning before the regular session opens. If ES (S&P 500 futures) is down one percent at 9:00am, I know I am heading into a bearish open. If it is up one percent, I know we are getting gap-up conditions. Neither tells me exactly what to do, but both tell me what to expect.
The S&P 500 close on Monday does not really “matter” in any fundamental sense until the market opens on Tuesday morning. But pre-market activity between Monday’s close and Tuesday’s open is where the market digests overnight news and prices in what has changed.
Holidays and half-days are traps for new traders
A common beginner mistake is not checking whether the market is open or on an early close schedule. They place a day trade at 12:45pm on the day after Thanksgiving (which is a 1:00pm early close), only to discover their positions auto-closed fifteen minutes later. Or they plan to enter on “Monday morning” without realizing Monday is a holiday.
Check the calendar. The stock market holidays article has the full schedule for the current year.
Common Questions About Stock Market Hours
What time does the New York Stock Exchange open?
9:30am ET for the regular session. Pre-market opens at 4:00am ET. After-hours closes at 8:00pm ET.
What time does the stock market close today?
4:00pm ET on regular trading days. 1:00pm ET on early close days (day after Thanksgiving, Christmas Eve if it falls on a weekday, and a few others). Closed entirely on weekends and federal holidays.
Is the stock market open on Saturday or Sunday?
No. The US stock market is closed both days. Some futures markets (like CME equity index futures) trade on Sunday night starting around 6:00pm ET.
What time does the Dow Jones open and close?
The Dow Jones Industrial Average (DJIA) is an index, not an exchange. It reflects the price of 30 large US stocks traded on NYSE and NASDAQ. So “Dow hours” are the same as regular US stock market hours: 9:30am to 4:00pm ET.
What time does the NASDAQ open and close?
Same as NYSE. 9:30am to 4:00pm ET. Pre-market and after-hours on NASDAQ follow the same 4:00am and 8:00pm boundaries.
What time does premarket trading start?
4:00am ET for most ECNs (electronic trading networks). However, most retail brokers only accept pre-market orders starting at 7:00am or 8:00am ET. Check your specific broker’s rules.
What time does after-hours trading end?
8:00pm ET for most brokers. Volume drops off sharply after 6:00pm, so even though you technically can trade until 8:00pm, most of the meaningful action happens in the first hour after the 4:00pm close.
What time does the stock market open Pacific Time?
6:30am PT. Closes at 1:00pm PT. Pre-market starts at 1:00am PT. After-hours ends at 5:00pm PT.
What time does the stock market open Central Time?
8:30am CT. Closes at 3:00pm CT. Pre-market starts at 3:00am CT. After-hours ends at 7:00pm CT.
How to Use Market Hours in Your Trading Plan
- Know the schedule before you sit down at the screen. Check the calendar for holidays and half-days at the start of each month.
- Match your strategy to the time of day. Opening hour for momentum. Midday for mean reversion or no trading at all. Closing hour for institutional flow.
- Use pre-market to set your watchlist. Check which stocks are gapping and why. Build your intraday watchlist by 9:00am, not at 9:31am.
- Respect the quiet hours. If volume is thin and the setup is mediocre, wait. The market will be open tomorrow.
- Understand that extended-hours trading is different. Wider spreads, less liquidity, news-driven moves. Not for beginners.
Key Takeaways
- The US stock market opens at 9:30am ET and closes at 4:00pm ET, Monday through Friday, with exceptions for weekends, holidays, and early close days.
- Pre-market trading runs from 4:00am to 9:30am ET. After-hours trading runs from 4:00pm to 8:00pm ET. Both have lower volume and wider spreads than the regular session.
- The market is closed for about nine US federal holidays per year, plus a few early close days. Check the calendar at the start of each month.
- Different parts of the trading day have different personalities. The open and close are volatile and high-volume. Midday is quieter and often choppier.
- Time zone conversions matter. The market opens at 6:30am Pacific Time, 8:30am Central Time, 9:30am Eastern Time. Daylight saving adjustments shift your local time relative to ET twice a year.
For more on the specific mechanics of trading outside regular hours, read pre-market and after-hours trading hours explained. For what happens when the market is closed around the world, see global stock market hours.
Disclaimer: This article is for educational purposes only and does not constitute financial advice. Trading involves substantial risk of loss. Always consult a qualified financial advisor before making trading decisions.