What Time Does the Stock Market Open on 1 December 2025? Global Trading Hours, Holiday Closures and What to Watch

On Monday, 1 December 2025, investors step into a busy new month: it’s the first trading day of December, the start of the traditional year‑end “Santa rally” period, and also Cyber Monday, one of the biggest global shopping days of the year.Equity Clock+1

Most major stock markets will be open for business on their usual Monday schedule, but a handful will be closed for national holidays, and at least one big change in trading hours goes live that day in Europe.

Below is a practical, investor‑friendly guide to exactly when the main global stock markets open on 1 December 2025, which exchanges are closed, and why this particular Monday matters.

Quick Answer: Major Market Opening Times on Monday, 1 December 2025

All times below are local exchange times for the regular daytime cash‑equity session (not including pre‑market or after‑hours sessions).

North America

• United States – NYSE & Nasdaq (New York)
  • Open: 9:30 a.m. – 4:00 p.m. Eastern Time (ET)
  • The Thanksgiving and Black Friday short‑day schedule ends the previous week; exchanges return to normal hours on Monday, 1 December 2025.Kiplinger+3NYSE+3NASDAQ Trader+3
• Canada – Toronto Stock Exchange (TSX & TSX Venture)
  • Open: 9:30 a.m. – 4:00 p.m. local time (Eastern)
  • Canadian markets had their last 2025 holiday in October (Thanksgiving); early closing and holiday closures resume only around Christmas (24–26 December).Forex Church+3TSX.com+3TradingHours+3
• Brazil – B3 (São Paulo)
  • Cash‑equity market regular session:
    • Trading: 10:00 a.m. – 5:55 p.m. (with a closing call to 6:00 p.m.)
    • After‑market: 6:25 p.m. – 8:00 p.m. for some instruments
  • From 3 November 2025, B3 shifted to this updated schedule to align with the end of U.S. and European daylight saving time, so these new hours are already in force by 1 December.TradingHours+3B3+3Global Exchanges+3

Europe & UK

• London Stock Exchange (LSE – London)
  • Open: 8:00 a.m. – 4:30 p.m. GMT
  • 1 December 2025 is a normal full trading day; the only December irregularity is the early close on Christmas Eve.TradingHours+2London Stock Exchange+2
• Xetra / Frankfurt Stock Exchange (Germany)
  • New extended hours effective this day:
    • Open: 8:00 a.m. – 10:00 p.m. Central European Time (CET)
  • Deutsche Börse begins a 14‑hour trading day on Xetra starting 1 December 2025, expanding from the traditional 9:00–5:30 window to help European investors trade alongside U.S. markets.Deutsche Börse Group+3ETF Stream+3Deutsche…
• Euronext Core Markets (Paris, Amsterdam, Brussels, Milan, Dublin, Oslo, etc.)
  • Typical cash‑equity hours: around 9:00 a.m. – 5:30 p.m. CET (or local equivalent) on weekdays.Euronext+1
  • These Euronext venues are open on 1 December 2025; their 2025 holiday list does not include this date.Euronext+1
• SIX Swiss Exchange (Zurich)
  • Open: 9:00 a.m. – 5:20 p.m. CET, Monday to Friday except Swiss public holidays.TradingHours+2SIX+2
  • No Swiss exchange holiday falls on 1 December 2025.

Asia‑Pacific

• Tokyo Stock Exchange (TSE / JPX – Japan)
  • Open:
    • Morning: 9:00 a.m. – 11:30 a.m. Japan Standard Time (JST)
    • Afternoon: 12:30 p.m. – 3:00 p.m. JST
  • 1 December 2025 is a standard business Monday; Tokyo’s 2025 holidays fall on other dates (e.g., Coming of Age Day in January, Labour Thanksgiving Day in November, year‑end on 31 December).TradingHours+2Forex Church+2
• Hong Kong Stock Exchange (HKEX)
  • Open:
    • Morning: 9:30 a.m. – 12:00 p.m. HKT
    • Afternoon: 1:00 p.m. – 4:00 p.m. HKT
  • Trading‑hours data specifically lists Monday, 1 December 2025 as a normal session with these times.TradingHours+1
• Shanghai Stock Exchange (SSE – China)
  • Open: 9:30 a.m. – 11:30 a.m. and 1:00 p.m. – 2:57 p.m. China Standard Time (CST)
  • Scheduled 2025 holidays cover New Year’s Day, Chinese New Year, Qingming, Labour Day and National Day—not 1 December.Shanghai Stock Exchange+2TradingHours+2
• National Stock Exchange & BSE (India)
  • Open: 9:15 a.m. – 3:30 p.m. India Standard Time (IST) on weekdays.TradingHours+2Plus500+2
  • The official 2025 holiday calendar shows only Christmas Day (25 December) as a trading holiday in December; exchanges remain open on 1 December 2025, even though Indian banks observe multiple state‑level holidays that month.mint+2mint+2
• Australian Securities Exchange (ASX – Sydney)
  • Open: 10:00 a.m. – 4:00 p.m. local time (Sydney; AEDT in December) on trading days.Investopedia+3Australian Securities Exchan…
  • ASX’s 2025 calendar lists standard public‑holiday closures (New Year’s Day, Australia Day, Good Friday, etc.) and an early close at year‑end; 1 December is a normal session.Australian Securities Exchange+1
• Other regional markets (examples)
  • Singapore Exchange (SGX): typically 9:00 a.m. – 5:00 p.m. local time.
  • Korea Exchange (KRX): 9:00 a.m. – 3:30 p.m. Korea Standard Time.
  • Taiwan Stock Exchange (TWSE): 9:00/9:15 a.m. – 1:30 p.m. local time.Plus500+1
  • None of these markets have a published holiday on Monday, 1 December 2025.

Middle East, Africa & Smaller Markets

This is where most of the 1 December 2025 stock‑market closures appear.

According to multiple holiday‑calendar providers and exchange notices, the following exchanges are closed on Monday, 1 December 2025:FXEmpire+5Investing.com+5Investing.com Nig…

• Portugal – Euronext Lisbon (Lisbon Stock Exchange)
  • Closed for Restoration of Independence Day, a national public holiday celebrated every 1 December.
• Romania – Bucharest Stock Exchange
  • Closed for National Day.
• United Arab Emirates – Dubai Financial Market and Abu Dhabi Securities Exchange
  • Closed for Commemoration Day / UAE National Day. Settlement calendars for Nasdaq Dubai also list 1 December as a non‑trading day for AED‑denominated activity.
• Costa Rica – Costa Rica Stock Exchange
  • Closed for the country’s National Day.

Other regional exchanges—such as the Johannesburg Stock Exchange (South Africa) or Tel Aviv Stock Exchange—remain open on 1 December, with their next holidays arriving later in December (e.g., Day of Reconciliation in South Africa on 16 December).Investing.com Nigeria+2Fese+2

How Cyber Monday and the Holiday Season Shape 1 December Trading

Cyber Monday 2025 also falls on 1 December, capping a long U.S. holiday weekend that includes Thanksgiving and Black Friday. Retailers are expected to roll out a wave of online discounts, with analysts projecting strong e‑commerce traffic and billions of dollars in sales.Kiplinger+1

For markets, that means:

• U.S. traders return from a short session on Black Friday. Headlines over the weekend often focus on retail sales and consumer‑spending data, key inputs for equity sentiment heading into December.Kiplinger+4Kiplinger+4Barron’s+4
• Global tech and AI‑linked stocks have recently been driving market swings; late‑November coverage highlighted a rebound in Asian tech names and ongoing volatility in the sector.The Wall Street Journal+1
• Seasonal patterns matter: historical studies show December is often one of the stronger months for equities, helped by year‑end portfolio rebalancing and the so‑called “Santa Claus rally.”Equity Clock+1

So while 1 December is mostly a “plain vanilla” Monday in terms of scheduled trading hours, it lands at the intersection of powerful holiday, consumer‑spending and seasonal market narratives.

New Trend: Longer Trading Days and Near‑24‑Hour Markets

Beyond traditional opening bells, 2025 is also about longer and more continuous trading:

• Xetra’s big extension: As noted, German equities on Xetra move to an 8:00 a.m. – 10:00 p.m. CET schedule from 1 December 2025, giving European investors much more overlap with U.S. trading.ETF Stream+2Deutsche Börse Group+2
• B3’s updated hours in Brazil, effective November 2025, stretch the Bovespa cash market into the evening for some instruments.B3+1
• Cboe Global Markets plans to roll out 24‑hour, five‑days‑a‑week trading on its EDGX U.S. equities exchange, reflecting growing demand from investors in Asia‑Pacific time zones.Reuters
• New electronic venues like 24X have been cleared by regulators to offer very long trading windows—initially 4:00 a.m. to 7:00 p.m. ET—highlighting a broader shift toward almost around‑the‑clock stock trading.Investopedia+1

For most everyday investors, the core cash session is still where liquidity is deepest and spreads are tightest. But for active traders, understanding how the Asia–Europe–U.S. trading cycle now overlaps has become even more important.

Watch Out for Unscheduled Disruptions

Official calendars tell you when exchanges intend to open, but markets can still be disrupted by technology outages or emergencies.

• As recently as 28 November 2025, a major data‑centre cooling failure halted trading on CME Group’s Globex platform for roughly 11 hours, impacting a large chunk of the world’s derivatives trading.FN London
• Regulators and exchanges have warned that as markets become more electronic and more global, the risk of operational incidents and cyber threats during trading hours increases.FN London+1

In practice, that means that even on a “normal” trading day like 1 December 2025, it’s wise to:

• Check your broker’s or exchange’s status page before placing large orders.
• Use limit orders rather than market orders if spreads look unusually wide.
• Be cautious trading illiquid names in pre‑market or extended sessions, where volatility and gaps can be larger.

Practical Tips for 1 December 2025

If you’re planning to trade or adjust your portfolio on this date, here’s how to use the opening‑time information effectively:

1. Know which bell you care about.
   • U.S.‑focused investors: mark 9:30 a.m. ET (NYSE/Nasdaq).
   • European traders: note 8:00 a.m. CET Xetra open and 8:00 a.m. GMT LSE open.
   • Asia‑centric traders: watch the sequence of Tokyo → Shanghai/Hong Kong → India → Europe → U.S. through the global day.
2. Beware of local holidays if you trade smaller markets.
   • No trading on Lisbon, Bucharest, Dubai, Abu Dhabi or Costa Rica exchanges that Monday due to national holidays.Myfxbook.com+4Investing.com+4Investing.com…
3. Remember Cyber Monday.
   • Expect heavy retail‑sector headlines and possibly higher‑than‑usual interest in consumer, e‑commerce and payments stocks as spending data and traffic estimates roll in.The Wall Street Journal+3Kiplinger+3Kiplin…
4. Stay updated the morning of.
   • Trading hours are generally stable, but exchanges can occasionally add ad‑hoc half‑days or emergency closures, and technical issues can arise. Official websites and your broker’s alert system are the final word.

Bottom line

On Monday, 1 December 2025, the answer to “What time does the stock market open?” depends on where you look:

• Most major stock markets—New York, Toronto, London, Paris, Frankfurt, Zurich, Tokyo, Hong Kong, Shanghai, Mumbai, Sydney and São Paulo—are open on their regular weekday schedules.
• Some markets, especially in Portugal, Romania, the UAE and Costa Rica, are closed for national holidays.
• Germany’s Xetra makes a notable move to a much longer 8:00 a.m. – 10:00 p.m. CET session starting that very day.

Combine that with Cyber Monday’s retail frenzy and the start of December’s historically strong seasonality, and 1 December 2025 is shaping up to be a busy day on global trading screens—once you know exactly when the bells ring.