How we verify market-hours data

We publish regular exchange sessions, market-local time, timezone conversions, status labels, countdowns, and selected holiday or early-close dates. The site does not provide prices, quotes, order routing, or investment recommendations.

Every schedule is presented as reference information. Trading venues and brokers can change sessions, announce exceptional closures, or apply product-specific rules that are outside the scope of a general market-hours tool.

Official exchange calendars, trading-hours pages, and rule pages are the preferred sources. The source cards on market and guide pages link to the relevant exchange material and show the date on which it was checked.

If an exchange schedule and a secondary description disagree, the official exchange publication takes precedence. Time-sensitive decisions should still be confirmed directly with the exchange or the user's broker.

Market status is calculated from the exchange's named IANA timezone, its regular session blocks, weekends, and the holiday coverage available for that market. Named timezones allow daylight-saving changes to be applied by date instead of relying on a fixed UTC offset.

A displayed status is a calculation from schedule data, not a real-time exchange feed. It cannot reflect intraday halts, technical outages, emergency closures, or every auction and product-specific session.

NYSE and Nasdaq holiday and early-close coverage is maintained for the years shown on the site. Other exchanges currently use their regular weekday sessions and may still appear open on a local holiday. Coverage badges make this distinction visible wherever status is shown.

Extended-hours access varies by broker, venue, security, and order type. Pre-market and after-hours references describe common U.S. equity windows and are not a promise that a particular account can trade throughout those periods.

We review source links and schedule data when calendars are updated, new yearly coverage is added, or a discrepancy is reported. A visible review date is included on editorial guide pages so readers can judge the freshness of the material.

Corrections are applied to the underlying schedule and localized copy together. Reports should include the affected exchange, date, page URL, and a link to the authoritative source when possible.