How is the calendar produced?

It is computed from the exchanges' published rules rather than copied from a list, which is why it is valid from 1998 to 2200. Good Friday comes from the Easter computus, Saturday holidays are observed on the Friday before, and the Saturday New Year's Day rule, under which 2022 had no New Year holiday, is handled.

Which holidays and early closes are included?

The ten NYSE and Nasdaq market holidays, including Juneteenth from 2022, and the 13:00 ET early closes on the day after Thanksgiving, Christmas Eve and July 3 when the rules call for them. Unscheduled closures such as days of mourning are not included.

What does the status endpoint return?

Whether the market is open right now, today's session hours, whether today is an early close, and the next trading day with its opening time.

Does it cover other markets?

No. It is the US equity calendar for NYSE and Nasdaq only. Public holidays for 204 countries are in the Public Holidays API.

What does a call cost?

1 token. Everything is computed in the worker, so calls are fast and the free plan covers 500 a month.

FinanceMAINTAINED1 token / call

Trading Calendar API

Is the US stock market open? NYSE and Nasdaq holidays, early closes and trading-day math, 1998 to 2200

Is the market open? The US equity trading calendar (NYSE/Nasdaq) computed from the published rules for any year from 1998 through 2200: the ten market holidays with correct observance (including the subtle ones — Good Friday from the Easter computus, Saturday holidays observed the preceding Friday, and the Saturday New Year rule under which the market simply has no New Year holiday, as in 2022), the 13:00 ET early closes (day after Thanksgiving, Christmas Eve, July 3 when the rules say so), regular 09:30-16:00 ET hours, next-trading-day resolution, and trading-day counts and lists for any date range (2026 has exactly 251). July 4 2026 falls on a Saturday, so the holiday endpoint correctly shows July 3 observed AND drops that year's July 3 early close. Pure computation — no scraped calendar that goes stale, answers in milliseconds at the lowest token cost. The scheduling backbone for trading apps, fintech backends, settlement-date math, options-expiry tooling and reporting jobs. Pairs with our Stock Tickers, Company Financials and Inflation APIs. Excludes unscheduled closures such as days of mourning.

Every call needs an X-Api-Key header. A free key includes 500 tokens a month, no card required. 1 token per call, so the free plan covers about 500 calls a month.

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response.json

{
  "ok": true,
  "note": "US equity markets (NYSE/Nasdaq), rules-based; excludes unscheduled closures",
  "date": "2026-11-27",
  "is_trading_day": true,
  "reason": null,
  "early_close": true,
  "hours_et": {
    "open": "09:30",
    "close": "13:00"
  },
  "next_trading_day": null
}

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Use cases for Trading Calendar API

Show an 'open' or 'closed' badge with the next opening time on a trading or portfolio app.
Compute settlement dates and trading-day counts between two dates for back-office and reporting.
Schedule data jobs and alerts only on trading days, skipping holidays and respecting 13:00 early closes.
Back-test strategies with an exact list of trading days for any year since 1998.

Trading Calendar API endpoints

Every endpoint with its parameters and a real example response.

OpenAPI definition Postman workspace

GETMarket Holidays
GETMarket Status
GETNext Trading Day
GETTrading Days In Range

GETMarket Holidays

https://api-trading-calendar.dataandapis.com/v1/holidays

Query parameters

Parameter	Example
year	2026	Optional

Example request

curl "https://api-trading-calendar.dataandapis.com/v1/holidays?year=2026" \
  -H "X-Api-Key: YOUR_API_KEY"

Example response

{
  "ok": true,
  "note": "US equity markets (NYSE/Nasdaq), rules-based; excludes unscheduled closures",
  "year": 2026,
  "holidays": [
    {
      "date": "2026-01-01",
      "name": "New Year's Day"
    },
    {
      "date": "2026-01-19",
      "name": "Martin Luther King Jr. Day"
    },
    {
      "date": "2026-02-16",
      "name": "Washington's Birthday"
    },
    {
      "date": "2026-04-03",
      "name": "Good Friday"
    },
    {
      "date": "2026-05-25",
      "name": "Memorial Day"
    },
    {
      "date": "2026-06-19",
      "name": "Juneteenth"
…

Show full response

{
  "ok": true,
  "note": "US equity markets (NYSE/Nasdaq), rules-based; excludes unscheduled closures",
  "year": 2026,
  "holidays": [
    {
      "date": "2026-01-01",
      "name": "New Year's Day"
    },
    {
      "date": "2026-01-19",
      "name": "Martin Luther King Jr. Day"
    },
    {
      "date": "2026-02-16",
      "name": "Washington's Birthday"
    },
    {
      "date": "2026-04-03",
      "name": "Good Friday"
    },
    {
      "date": "2026-05-25",
      "name": "Memorial Day"
    },
    {
      "date": "2026-06-19",
      "name": "Juneteenth"
    },
    {
      "date": "2026-07-03",
      "name": "Independence Day",
      "observed_for": "2026-07-04"
    },
    {
      "date": "2026-09-07",
      "name": "Labor Day"
    },
    {
      "date": "2026-11-26",
      "name": "Thanksgiving Day"
    },
    {
      "date": "2026-12-25",
      "name": "Christmas Day"
    }
  ],
  "early_closes": [
    {
      "date": "2026-11-27",
      "name": "Day after Thanksgiving",
      "close": "13:00"
    },
    {
      "date": "2026-12-24",
      "name": "Christmas Eve",
      "close": "13:00"
    }
  ]
}

GETMarket Status

https://api-trading-calendar.dataandapis.com/v1/status

Query parameters

Parameter	Example
date	2026-11-27	Optional

Example request

curl "https://api-trading-calendar.dataandapis.com/v1/status?date=2026-11-27" \
  -H "X-Api-Key: YOUR_API_KEY"

Example response

{
  "ok": true,
  "note": "US equity markets (NYSE/Nasdaq), rules-based; excludes unscheduled closures",
  "date": "2026-11-27",
  "is_trading_day": true,
  "reason": null,
  "early_close": true,
  "hours_et": {
    "open": "09:30",
    "close": "13:00"
  },
  "next_trading_day": null
}

GETNext Trading Day

https://api-trading-calendar.dataandapis.com/v1/next

Query parameters

Parameter	Example
after	2026-07-02	Optional

Example request

curl "https://api-trading-calendar.dataandapis.com/v1/next?after=2026-07-02" \
  -H "X-Api-Key: YOUR_API_KEY"

Example response

{
  "ok": true,
  "note": "US equity markets (NYSE/Nasdaq), rules-based; excludes unscheduled closures",
  "after": "2026-07-02",
  "next_trading_day": "2026-07-06",
  "hours_et": {
    "open": "09:30",
    "close": "16:00"
  }
}

GETTrading Days In Range

https://api-trading-calendar.dataandapis.com/v1/trading-days

Query parameters

Parameter	Example
dates	true	Optional
from	2026-11-01	Required
to	2026-11-30	Required

Example request

curl "https://api-trading-calendar.dataandapis.com/v1/trading-days?dates=true&from=2026-11-01&to=2026-11-30" \
  -H "X-Api-Key: YOUR_API_KEY"

Example response

{
  "ok": true,
  "note": "US equity markets (NYSE/Nasdaq), rules-based; excludes unscheduled closures",
  "from": "2026-11-01",
  "to": "2026-11-30",
  "count": 20,
  "dates": [
    "2026-11-02",
    "2026-11-03",
    "2026-11-04",
    "2026-11-05",
    "2026-11-06",
    "2026-11-09",
    "2026-11-10",
    "2026-11-11",
    "2026-11-12",
    "2026-11-13",
    "2026-11-16",
    "2026-11-17",
    "2026-11-18",
    "2026-11-19",
    "2026-11-20",
    "2026-11-23",
    "2026-11-24",
    "2026-11-25",
    "2026-11-27",
    "2026-11-30"
  ]
…

Show full response

{
  "ok": true,
  "note": "US equity markets (NYSE/Nasdaq), rules-based; excludes unscheduled closures",
  "from": "2026-11-01",
  "to": "2026-11-30",
  "count": 20,
  "dates": [
    "2026-11-02",
    "2026-11-03",
    "2026-11-04",
    "2026-11-05",
    "2026-11-06",
    "2026-11-09",
    "2026-11-10",
    "2026-11-11",
    "2026-11-12",
    "2026-11-13",
    "2026-11-16",
    "2026-11-17",
    "2026-11-18",
    "2026-11-19",
    "2026-11-20",
    "2026-11-23",
    "2026-11-24",
    "2026-11-25",
    "2026-11-27",
    "2026-11-30"
  ]
}

Where the data comes from

Source: NYSE and Nasdaq published holiday and early-close rules, implemented as pure computation and verified against known years, for example 251 trading days in 2026.
Freshness: Computed on every call. Rule changes are shipped with API releases.

One install. Every endpoint.

No proprietary SDKs needed. Any HTTP client works. Pick your language and paste.

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import axios from 'axios';

const { data } = await axios.get(
  'https://api-trading-calendar.dataandapis.com/v1/holidays',
  { headers: { 'X-Api-Key': process.env.API_KEY } }
);

Trading Calendar API · X-Api-Key

Explore the endpoints

Browse request parameters and inspect live example responses.

Available Endpoints

Request Parameters

API URL

Headers

X-Api-Key

Query Parameters

year(Optional)

Target:

Client:

import axios from 'axios';

const url = 'https://api-trading-calendar.dataandapis.com/v1/holidays';
const { data } = await axios.get(url, {
  headers: { 'X-Api-Key': 'YOUR_API_KEY' }
});