About Market Open Time

Our Mission

Market Open Time exists to answer one question: when can I trade? We provide traders, investors, and financial professionals with accurate, real-time information about U.S. stock market hours, holiday schedules, and trading day status — all automatically converted to your local timezone.

Who Runs This Site

Market Open Time is published and maintained by the Market Open Time editorial team. Our market-hours data is verified against official exchange calendars and broker documentation on an ongoing basis.

Have a question, correction, or suggestion? Contact us at mopentime@gmail.com.

What We Offer

  • Real-Time Market Status: Know instantly if NYSE and Nasdaq markets are open, closed, in pre-market, after-hours, or on holiday
  • Timezone Conversion: View market hours automatically converted to your local timezone
  • Holiday Calendar: Complete 12-holiday schedule with individual dedicated pages, updated annually
  • Broker Hours Directory: Compare extended-hours access across 10 major U.S. brokers, with source-verified individual broker pages
  • Market Hours News: Updates on exchange schedule changes, broker session expansions, trading halts, and settlement rules
  • 7-Day Schedule: Plan ahead with a week-at-a-glance trading calendar
  • Interactive Calculators: Black-Scholes options pricer, position size calculator, and profit/loss analyzer

Data Sources & Methodology

Our market-hours data is sourced from official exchange calendars and verified broker documentation:

  • NYSE: Official holiday and early-close calendar
  • Nasdaq: Official trading calendar
  • SIFMA: U.S. bond market holiday recommendations
  • Individual broker websites: Extended-hours policies verified quarterly
  • FINRA & SEC: Regulatory rules for trading halts and settlement

Data pipelines refresh daily at 6:00 AM UTC to ensure accuracy for each trading day. For more detail, see our editorial policy.

Accuracy & Corrections

While we verify our data against official sources, always confirm critical trading times with your broker or official exchange sources. If you find an error, email mopentime@gmail.com — we investigate and correct verified errors within 48 hours. See our editorial policy for our full corrections process.