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Stock Market Opening Time Calculator

See when global exchanges open and close in your local time, with live countdowns.

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Regular sessions only. Holidays/half-days not applied.
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Exchange City / Country Status Opens In Closes In Regular Hours (Today) Exchange Time Zone

🔹 Table of Contents

🔹 Stock Market Opening Time Calculator: What It Does

This tool shows live opening/closing status for the world’s major stock exchanges in your local time zone. It handles split sessions (e.g., Tokyo and Hong Kong), Sunday–Thursday markets (e.g., Tadawul), and daylight-saving differences by converting every exchange’s local session to your selected zone.

🔹 How to Use the Calculator

  • Pick your country (optional) to pre-fill common time zones.
  • Select a time zone to view all sessions converted to that zone.
  • Choose an exchange on the left to see a live countdown until it opens or closes.
  • Search the full list by exchange, city, or country; use the horizontal scroll to view all columns on small screens.

🔹 The Time Conversion Logic (Formula)

Step Formula Notes
1) Convert local session start to minutes m_start = H_local × 60 + M_local e.g., 09:30 → 570
2) Find offset difference Δ = offset(selectedTZ) − offset(exchangeTZ) Offsets are minutes from UTC at today’s date.
3) Apply offset and wrap 0–1440 m_conv = (m_start + Δ) mod 1440 Repeat for session end time.

Global Stock Exchanges — Live Open/Closed Map

Open Opens < 1h Closed
Map © OpenStreetMap contributors • Tiles by OSM • Built with Leaflet.
The live interactive map above updates automatically.

🔹 Global Market Sessions & Trading Days

Equity markets don’t all run the same schedule. Most operate Monday–Friday with a single continuous session (e.g., NYSE, LSE), while several in Asia trade split sessions (morning + afternoon, e.g., TSE, HKEX). In the Gulf, markets are typically Sunday–Thursday (e.g., Tadawul). Your calculator converts each exchange’s local session to your selected time zone and shows a live “Opens in / Closes in” countdown.

Region Typical Trading Days Session Style Examples
Americas Mon–Fri Continuous (single session) NYSE, Nasdaq, TSX, B3
Europe Mon–Fri Mostly continuous LSE, Euronext, Xetra, SIX
Asia Mon–Fri Split sessions common TSE (09:00–11:30 & 12:30–15:00), HKEX, SSE/SZSE
Middle East Sun–Thu Mostly continuous Tadawul, ADX, DFM, QSE

🔹 Why Overlaps Matter

Liquidity often peaks when major sessions overlap (for example, Europe–U.S.). Use the calculator to identify the window where your target exchanges are simultaneously OPEN in your time zone.

Session overlap bars for Asia, Europe, and U.S. exchanges
Illustration: Example overlap of Asia, Europe, and U.S. sessions .

🔹 Countdown Logic (Open/Close)

For each exchange, the app computes the next boundary relative to the exchange’s local time now:

  • If inside a session window → show Closes in = end − now.
  • If before the next session today → show Opens in = nextStart − now.
  • If no more sessions today → jump to the next trading day and add full-day minutes.

Split sessions are handled by checking both morning and afternoon windows. Gulf exchanges use a Sun–Thu trading-week array.

🔹 Pro Tips

  • When planning cross-listed trades, check two exchanges and align with the overlap window.
  • If your broker supports it, set alerts near session boundaries to capture opening auctions or closing prints.
  • Pair this with our Time Zone Converter when scheduling meetings with teams across regions.

🔹 Daylight Saving Time (DST) & Seasonality

Many exchanges change their effective trading hours relative to other regions when DST shifts. Our calculator reads each time zone’s current UTC offset (today’s date) so your session times always reflect the correct seasonal offset automatically. That’s why the offset(selectedTZ) − offset(exchangeTZ) difference in the calculator can change across the year.

Region DST Observed? Impact on Overlaps Notes
United States (NYSE/Nasdaq) Yes (Mar–Nov approx.) U.S.–Europe overlap widens/narrows by 1 hour around DST switches. Pre/after-market exist, but calculator shows regular session.
Europe (LSE, Euronext, Xetra) Yes (Mar–Oct/Nov) Overlap with Asia and U.S. shifts by ±1 hour seasonally. London may be on GMT or BST depending on date.
Asia (Tokyo, Hong Kong, Shanghai) No Perceived opening times vs. U.S./Europe move when those regions change clocks. Split sessions are common (lunch breaks).
Gulf (Tadawul, ADX, DFM) Generally No Sunday–Thursday week causes different cross-region overlaps. Watch Friday/Saturday closures.

🔹 Holidays & Half-Days (What to Expect)

Each exchange publishes an official holiday calendar and, in some cases, half-day schedules (early close). This calculator focuses on regular sessions and does not apply holiday calendars. Use it to plan time-zone conversion and overlaps, then confirm date-specific closures with the exchange or your broker.

Exchange Common Exceptions Typical Adjustment
NYSE/Nasdaq U.S. federal holidays; several scheduled half-days Close early around 13:00 local on half-days
HKEX Lunar New Year; Mid-Autumn Festival (pm close) Afternoon session often shortened or cancelled
TSE (Tokyo) Golden Week; New Year holidays Full closures on listed dates
Tadawul National/religious observances (Sun–Thu market) Full closures on listed dates

🔹 Planning Checklist

  • Confirm your target time zone and check the countdown for the exchange.
  • Note whether a region is in or out of DST on your trade date.
  • Look up the official holiday calendar and half-days for the venue (if applicable).
  • For split-session venues, plan around the midday break.

🔹 Practical Ways Traders Use This Calculator

  • Day traders: Time entries around the first 30–60 minutes of volatility after an exchange opens.
  • Swing traders: Align swing entries with Europe–U.S. overlap when liquidity and news flow are high.
  • Global teams: Schedule earnings watchlists and client calls in a mutual open window.
  • Cross-listed stocks: Compare price action between home market and ADR during simultaneous open hours.

🔹 Worked Scenarios

Scenario Inputs What the calculator shows How to act
U.S. trader watching Tokyo open Exchange: TSE (Tokyo)
Local session: 09:00–11:30 & 12:30–15:00 Asia/Tokyo
Your zone: America/New_York 		Converted hours example (when NY is on EST, −14h vs Tokyo):
19:00–21:30 & 22:30–01:00 (previous day evening to overnight) 		Prepare watchlist by 18:30 ET; monitor opening auction at 19:00 ET.
London analyst tracking U.S. close Exchange: NYSE
Local session: 09:30–16:00 America/New_York
Your zone: Europe/London 		During BST (NY −5h), calculator shows:
14:30–21:00 in London 		Plan notes for the closing auction 20:55–21:00 London time.
Sunday–Thursday markets (GCC) Exchange: Tadawul
Local session: 10:00–15:00 Asia/Riyadh
Open days: Sun–Thu 		The card displays Closed on Fri/Sat and a countdown to Sunday open. Shift weekly prep to Saturday; catch gap moves at the Sunday open.
Split sessions with lunch break Exchange: HKEX
Local session: 09:30–12:00 & 13:00–16:00 Asia/Hong_Kong 		During the lunch window the status flips to Closed with countdown to 13:00. Place orders before 12:00 or queue for the 13:00 reopen.

Tip: If you need to plan across non-trading days or count only business days between events, use our Business Days Calculator alongside this tool.

🔹 Quick Reference: Regular Hours (Local Time)

Use these as a regular-session baseline. Our calculator converts each venue’s hours into your selected time zone and shows live Open/Closed status. Holidays and special schedules (e.g., half-days) vary by venue.

Exchange City Local Time Zone Regular Session Trading Days
NYSE (New York Stock Exchange) New York America/New_York 09:30–16:00 Mon–Fri
Nasdaq New York America/New_York 09:30–16:00 Mon–Fri
LSE (London Stock Exchange) London Europe/London 08:00–16:30 Mon–Fri
Euronext Paris Paris Europe/Paris 09:00–17:30 Mon–Fri
Xetra (Frankfurt) Frankfurt Europe/Berlin 09:00–17:30 Mon–Fri
SIX Swiss Exchange Zurich Europe/Zurich 09:00–17:30 Mon–Fri
TSE (Tokyo Stock Exchange) Tokyo Asia/Tokyo 09:00–11:30 & 12:30–15:00 Mon–Fri
HKEX (Hong Kong) Hong Kong Asia/Hong_Kong 09:30–12:00 & 13:00–16:00 Mon–Fri
SSE (Shanghai) Shanghai Asia/Shanghai 09:30–11:30 & 13:00–15:00 Mon–Fri
NSE (India) Mumbai Asia/Kolkata 09:15–15:30 Mon–Fri

🔹 Convert at a Glance

  • Pick your Time Zone on the left, and the table updates to show today’s session in your zone.
  • Watch the countdown card for your selected exchange to see Opens in or Closes in.
  • Use search to quickly check any listed venue by name, code, city, or country.

Position sizing changes with volatility across sessions. Pair this with our Position Size Calculator to keep risk consistent as trading windows shift.

🔹 Methodology (How the calculator computes times)

The calculator stores each exchange’s regular session in its local IANA time zone (e.g., NYSE: 09:30–16:00 America/New_York). For your selected zone, we compute the current UTC offsets and convert session boundaries to your zone in real time. This automatically reflects daylight saving differences between regions on today’s date.

Computation Formula / Logic Purpose
Offset difference Δ = offset(selectedTZ) − offset(exchangeTZ) Captures DST and regional UTC offsets for “today”.
Time conversion m_conv = (m_local + Δ) mod 1440 Converts local session start/end to your time zone.
Open/close status If now ∈ [start, end) → Open and Closes in = end − now
Else → Closed and Opens in = nextStart − now 		Drives the live countdown card and table badges.
Split sessions Evaluate each window (e.g., 09:00–11:30 and 12:30–15:00). Shows “Closed” during lunch breaks and countdown to the next reopen.
Next trading day If no session left today, roll forward to the next openDays entry. Handles Mon–Fri vs. Sun–Thu markets cleanly.

🔹 Assumptions

  • Regular sessions only: Pre-market and after-hours are not shown.
  • No holiday calendars: Exchange-specific holidays, emergency halts, and half-days are not applied.
  • Current date offsets: Conversions use today’s UTC offsets (therefore reflect current DST status).
  • IANA zones: All offsets and conversions use IANA time zone IDs (e.g., Europe/London).

🔹 Limitations & Edge Cases

  • Holiday & special sessions: Always confirm against the exchange or broker for date-specific changes.
  • Intra-year DST switch days: Around clock-change weekends, overlaps can temporarily shift by an hour.
  • Unscheduled halts: News, technical issues, or weather can produce deviations from regular hours.
  • Regional lunch breaks: For split sessions, midday closures are treated as “Closed” with a countdown to the afternoon reopen.

🔹 Actionables to Improve Accuracy

  • Check the countdown for the venue you care about and note if the market is Open or Closed.
  • Confirm holiday/half-day schedules on the exchange’s official site when trading on/near holidays.
  • When conversions matter for settlement or hedging, cross-check with a Currency Converter to align timestamps with FX sessions.

Summary: the tool is built for time-zone clarity and session timing. Treat it as your fast baseline, then verify any date-specific exceptions (holidays, half-days) before placing time-sensitive orders.

🔹 How to Read the Output

  • Status: The badge shows whether the exchange is OPEN now (in its local time) or Closed.
  • Countdown: Opens in or Closes in is computed from the exchange’s current local time, not your device’s clock.
  • Converted hours: “Today (in <your zone>)” lists each session boundary translated into your selected time zone.
  • Table view: Use the horizontal scroll to compare many venues quickly; the “Regular Hours (Today)” column is already converted.

🔹 Common Pitfalls (and fixes)

Issue Why it happens Fix
Times look “off” by one hour One region is in DST while the other is not Select the correct time zone (not just country) and re-check the converted hours
Market shows Closed at midday in Asia Split sessions with a lunch break Watch the countdown to the afternoon reopen listed under “Today (in …)”
Sunday appears as next open day (GCC) Gulf markets run Sun–Thu, not Mon–Fri That’s expected; plan around the Sunday open
Broker shows a half-day; calculator doesn’t This tool intentionally shows regular sessions only Confirm holiday/half-day on the exchange website or broker calendar

🔹 Mini Examples (fast checks)

Example A: You’re in Europe/Dublin and want NYSE.

  • Pick Europe/Dublin → Select NYSE.
  • Card shows Today (in Europe/Dublin): 14:30–21:00 when U.S. is on EDT and Ireland on IST.

Example B: You’re in Asia/Singapore and need LSE.

  • Select Asia/Singapore → Choose LSE.
  • Converted hours typically display overnight Singapore time (e.g., 15:00–23:30 in winter).

Planning orders around session edges? Pair this with our Risk/Reward Calculator to validate targets before the opening auction.

🔹 References & Sources

These sources inform the regular-session hours, session structures (split vs. continuous), trading days, and time-zone handling used by this calculator. Always verify date-specific holidays/half-days on the official exchange website.

Topic Source Notes
IANA Time Zone Database iana.org/time-zones Canonical time-zone IDs used for conversion (e.g., Europe/London).
JavaScript Internationalization API MDN: Intl.supportedValuesOf('timeZone') Browser-supported IANA TZ list population.
NYSE Regular Trading Hours NYSE: Hours & Calendars NYSE regular session 09:30–16:00 (local), holiday/half-day references.
Nasdaq Market Hours Nasdaq: Stock Market Hours Nasdaq regular session guidance (U.S.).
London Stock Exchange Hours LSE: Trading Hours Regular session 08:00–16:30 (local).
Euronext Trading Hours Euronext: Trading Hours Paris/Amsterdam/Brussels/Lisbon schedules.
Deutsche Börse Xetra Hours Xetra: Trading Hours Frankfurt electronic market hours.
SIX Swiss Exchange Hours SIX: Trading Calendar Regular hours & holiday schedule.
Tokyo Stock Exchange Sessions JPX/TSE: Trading Outline Split sessions 09:00–11:30 & 12:30–15:00 (local).
Hong Kong Exchanges (HKEX) Hours HKEX: Trading Hours Split sessions, midday break details.
Shanghai/Shenzhen Stock Exchange Hours SSE: Trading Hours  |  SZSE: Trading Hours Mainland China split sessions & days.
National Stock Exchange of India (NSE) NSE India: Market Timings Regular equity hours 09:15–15:30 (local).
BSE (Bombay Stock Exchange) BSE India: Trading Hours Regular equity hours (India).
Saudi Exchange (Tadawul) Hours Saudi Exchange: Trading Hours Sunday–Thursday trading week.
Singapore Exchange (SGX) Hours SGX: Trading Hours Split sessions & auction references.
Australian Securities Exchange (ASX) Hours ASX: Trading Hours & Calendar Regular hours & market phases.

🔹 Frequently Asked Questions

▼Does the calculator include pre-market or after-hours sessions?
No. This calculator focuses on regular sessions only. Pre-market and after-hours vary by venue and broker and are not shown here.
▼How do you handle split sessions (e.g., Tokyo, Hong Kong)?
Split sessions are stored as two windows (morning and afternoon). During the lunch break, status shows Closed with a countdown to the afternoon reopen.
▼Will daylight saving time (DST) be reflected automatically?
Yes. We compute conversions using the current UTC offset for each IANA time zone, so DST differences are reflected automatically for today’s date.
▼Do you account for exchange holidays and half-days?
Not in this version. Use the tool for time-zone conversion and overlaps, then confirm holidays/half-days on the exchange website or with your broker calendar.
▼The time looks off by one hour. What should I check?
Ensure you’ve selected the exact time zone (e.g., Europe/London vs Europe/Dublin). Around DST switches, cross-region overlaps can shift by an hour.
▼Why do some exchanges show Sunday as the next open day?
Some Gulf markets trade Sunday–Thursday. That’s expected behavior (e.g., Tadawul, ADX, DFM).
▼Is the list of time zones complete?
We load the full IANA time-zone list supported by your browser. If a zone is missing on your device, choose a close equivalent or try a different browser.
▼Can I filter exchanges by country or search by city?
Yes. Use the Country selector to pre-fill common zones and the Search box to filter by exchange name, code, city, or country.
▼Does this work on mobile?
Yes. The layout is responsive. Use the horizontal scroll to view the full table on small screens; controls are touch friendly.