Market · Status, sessions and calendar

Market calendar

The equity market schedule of one date: open, early close or closed.

GET/v1/market/calendarmarketCalendar

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Example request
Parameters
Response
Example response

Whether the US equity market is open on a date, closes early, or is closed (weekend or holiday), with the open and close times when it trades. Options on indexes and ETFs trade 15 minutes beyond the equity close; the overnight index session is described by /v1/options/sessions. The default is today.

Example request

curl -sS "https://api.ordermap.si/v1/market/calendar" \
  -H "Authorization: Bearer $ORDERMAP_API_KEY"

const res = await fetch("https://api.ordermap.si/v1/market/calendar", {
  headers: { Authorization: `Bearer ${process.env.ORDERMAP_API_KEY}` },
});
if (!res.ok) throw new Error(`${res.status} ${await res.text()}`);
const { data, meta } = await res.json();
console.log(data, meta.coverage);

Set ORDERMAP_API_KEY to your key. Replace the dates with a recent trading date.

Parameters

1 parameter, none required.

Parameter	Type and limits	Description
`date`queryoptional	stringdate	Calendar date, YYYY-MM-DD; the default is today in New York.

Response

Status	Meaning	Body
`200`	Successful response.	Schema below
`400`	Invalid, unknown or repeated parameters, or an invalid cursor.	Error object
`401`	Missing or invalid API key.	Error object
`403`	The plan, dataset release or account state does not allow this request.	Error object
`429`	Rate limit, burst limit or cooldown; wait Retry-After seconds.Retry-After	Error object
`500`	Internal error.	Error object
`503`	Data temporarily unavailable; retry after Retry-After seconds.Retry-After	Error object
`504`	The request timed out.	Error object

Authenticated responses carry the X-RateLimit-* headers (see rate limits); 429 and 503 add Retry-After.

200 response body

dataobjectrequiredThe schedule of one date.4 fields inside
- close_timestampinteger | nullunix-msrequiredClosing time of the equity market. Unix epoch milliseconds (UTC).
- datestringdaterequiredThe date asked for.
- open_timestampinteger | nullunix-msrequiredOpening time of the equity market. Unix epoch milliseconds (UTC).
- statusstringrequiredopen: a regular day; early_close: closes before 16:00 ET; closed: a weekend or holiday.openearly_closeclosed
metaobjectrequiredMeta object

Example response

{
  "data": {
    "date": "2026-11-27",
    "status": "early_close",
    "open_timestamp": 1795789800000,
    "close_timestamp": 1795802400000
  },
  "meta": {
    "as_of": 1760659200123,
    "coverage": {
      "complete": true
    },
    "delay_ms": 0,
    "delayed": false,
    "request_id": "0199f0c2-5a1e-7c3b-9d4e-2b6f8a1c3d5e",
    "source": "derived"
  }
}

Values are illustrative. Missing values are null, never 0.