List Sessions For Date Range

getMarketTimeSessions

get/market-time/sessions

Base URL: https://api.cert.tastyworks.com (Sandbox) · https://api.tastyworks.com (Production)

Returns the timings for each trading session in a date range for a single instrument collection. Pass `from-date`, `to-date`, and optionally `instrument-collection` (defaults to `Equity`); the span between `from-date` and `to-date` must not exceed 9 months. Useful for building a calendar of market hours.

Code samples

curl -X GET 'https://api.cert.tastyworks.com/market-time/sessions?from-date=2024-01-15&instrument-collection=Equity&to-date=2024-01-15' \
  -H 'Authorization: Bearer YOUR_ACCESS_TOKEN' \
  -H 'User-Agent: tastytrade-docs-example/1.0'

import requests

url = "https://api.cert.tastyworks.com/market-time/sessions?from-date=2024-01-15&instrument-collection=Equity&to-date=2024-01-15"
headers = {
    "Authorization": "Bearer YOUR_ACCESS_TOKEN",
    "User-Agent": "tastytrade-docs-example/1.0",
}
resp = requests.get(url, headers=headers)
print(resp.status_code, resp.json())

const resp = await fetch("https://api.cert.tastyworks.com/market-time/sessions?from-date=2024-01-15&instrument-collection=Equity&to-date=2024-01-15", {
  method: "GET",
  headers: {
    "Authorization": "Bearer YOUR_ACCESS_TOKEN",
    "User-Agent": "tastytrade-docs-example/1.0",
  },
})
const data = await resp.json()
console.log(resp.status, data)

package main

import (
	"net/http"
	"io"
	"fmt"
)

func main() {
	req, _ := http.NewRequest("GET", "https://api.cert.tastyworks.com/market-time/sessions?from-date=2024-01-15&instrument-collection=Equity&to-date=2024-01-15", nil)
	req.Header.Set("Authorization", "Bearer YOUR_ACCESS_TOKEN")
	req.Header.Set("User-Agent", "tastytrade-docs-example/1.0")
	resp, _ := http.DefaultClient.Do(req)
	defer resp.Body.Close()
	out, _ := io.ReadAll(resp.Body)
	fmt.Println(resp.Status, string(out))
}

import java.net.URI;
import java.net.http.*;

HttpClient client = HttpClient.newHttpClient();
HttpRequest req = HttpRequest.newBuilder()
    .uri(URI.create("https://api.cert.tastyworks.com/market-time/sessions?from-date=2024-01-15&instrument-collection=Equity&to-date=2024-01-15"))
    .header("Authorization", "Bearer YOUR_ACCESS_TOKEN")
    .header("User-Agent", "tastytrade-docs-example/1.0")
    .method("GET", HttpRequest.BodyPublishers.noBody())
    .build();
HttpResponse<String> resp = client.send(req, HttpResponse.BodyHandlers.ofString());
System.out.println(resp.statusCode() + " " + resp.body());

Parameters

Name	In	Type	Description
from-date	query	string	The date to start from e.g. "2024-01-15"
instrument-collection	query	string	The instrument collection to get sessions for enum: Equity, CME, CFE e.g. "Equity"
to-date*	query	string	The date to end at, the difference between from and to date must not exceed 9 months e.g. "2024-01-15"

Responses

200An array of session timings, one per trading day in the requested range.application/json

Example response

{
  "data": {
    "items": [
      {
        "close-at": "2024-01-15T14:30:00.000Z",
        "close-at-ext": "2024-01-15T14:30:00.000Z",
        "instrument-collection": "Equity",
        "open-at": "2024-01-15T14:30:00.000Z",
        "start-at": "2024-01-15T14:30:00.000Z"
      }
    ]
  },
  "context": "/market-time/sessions",
  "pagination": {
    "per-page": 0,
    "page-offset": 0,
    "item-offset": 0,
    "total-items": 0,
    "total-pages": 0,
    "current-item-count": 0
  }
}

Schema

datarequiredobject
- itemsrequiredarray<object>{5 fields}
contextrequiredstring
example: "/market-time/sessions"
paginationobject
Paging metadata, present on paginated list responses.
- per-pageinteger
- page-offsetinteger
- item-offsetinteger
- total-itemsinteger
- total-pagesinteger
- current-item-countinteger

401Missing or expired access token, or a missing/malformed `User-Agent` header.application/json

Example response

{
  "error": {
    "code": "unauthorized",
    "message": "No valid access token was provided; access tokens expire after 15 minutes."
  }
}

Schema

errorrequiredobject
- coderequiredstring
  Machine-readable error code (see the Error reference).
- messagerequiredstring
  Human-readable explanation.
- errorsarray<object>{3 fields}
  Present for multi-error / validation failures; one entry per problem.

422Invalid query parameters, for example a missing `to-date` or a `from-date`/`to-date` span that exceeds the 9-month maximum.application/json

Example response

{
  "error": {
    "code": "preflight_check_failure",
    "message": "One or more preflight checks failed",
    "errors": [
      {
        "code": "preflight_check_failure",
        "message": "A specific validation failed for this order."
      }
    ]
  }
}

Schema

errorrequiredobject
- coderequiredstring
  Machine-readable error code (see the Error reference).
- messagerequiredstring
  Human-readable explanation.
- errorsarray<object>{3 fields}
  Present for multi-error / validation failures; one entry per problem.

429Too many requests. Back off and reduce your request rate.application/json

Example response

{
  "error": {
    "code": "string",
    "message": "string",
    "errors": [
      {
        "code": "string",
        "message": "string",
        "domain": "string"
      }
    ]
  }
}

Schema

errorrequiredobject
- coderequiredstring
  Machine-readable error code (see the Error reference).
- messagerequiredstring
  Human-readable explanation.
- errorsarray<object>{3 fields}
  Present for multi-error / validation failures; one entry per problem.

Rate-limit class: read · idempotent — Rate limits & backoff
Error reference — codes, causes, and fixes

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List Sessions For Date Range

Code samples

Parameters

Responses

Related