TradingHours.com API Reference

# Timezones

# Timezones, Offsets, and Transitions

The Timezones API allows you to look up timezone offsets and Daylight Saving Time transitions times. This is essential for knowing precisely when markets will be open or closed. Common timezones include America/New_York, Europe/London, and Asia/Tokyo.

This API endpoint is included in all API access subscriptions.

Note

You can see what timezone a market uses by using the market details endpoint.

# List Timezones

First, you will need to enumerate all time zones. Timezones are in Olson Timezone format (opens new window).

# Schema

Field Format Description
name String Olson timezone identifier.
country_code ISO 3166 Two-letter country code.
observes_dst Boolean Indicates in true/false if the timezone observes Daylight Savings Time.

# Query String Parameters

Supported query string parameters are listed in the table below:

Parameter Supported Values Default Description
format CSV, JSON JSON Specify output format

If you use a query string parameter that isn't supported, the API will ignore the invalid query string parameters and execute the ones it recognizes.

# Examples

Remember to use your authentication token for all requests.

# Enumerate All Timezones

https://api.tradinghours.com/v3/timezones

# Enumerate Timezones in CSV Format

https://api.tradinghours.com/v3/timezones?format=csv

# Sample JSON Response

{
  "data": [
    {
      "name": "Africa\/Abidjan",
      "country_code": "CI",
      "observes_dst": false
    },
    {
      "name": "Africa\/Accra",
      "country_code": "GH",
      "observes_dst": false
    },
    {
      "name": "Africa\/Addis_Ababa",
      "country_code": "ET",
      "observes_dst": false
    },
        ...
    {
      "name": "Pacific\/Wake",
      "country_code": "UM",
      "observes_dst": false
    },
    {
      "name": "Pacific\/Wallis",
      "country_code": "WF",
      "observes_dst": false
    },
    {
      "name": "UTC",
      "country_code": "??",
      "observes_dst": false
    }
  ]
}

# Timezone Transitions

This API will show the transitions for each timezone, the abbreviations for the timezones, and if they are in Daylight Savings Time or not. This will return all information to help your website or application stay on top of all the various timezone transitions.

# Schema

Field Format Description
timestamp Unix Timestamp Time when the transition begins, showing in the number of seconds elapsed since January 1, 1970.
time Datetime Indicates the time that the transition begins.
offset Datetime Offset Offset from UTC in seconds.
is_dst Boolean Returns true/false, indicating if the period is Daylight Savings Time or not.
abbreviation Timzone Abbreviation Common code used to identify the timezone.

# Query String Parameters

Supported query string parameters are listed in the table below:

Parameter Supported Values Default Description
timezone Timezone name N/A Full list of timezones on Wikipedia
format CSV, JSON JSON Specify output format

# Examples

Remember to use your authentication token for all requests.

# Get Timezone Transition for New York Timezone

https://api.tradinghours.com/v3/timezones/transitions?timezone=america/new_york

# Get Timezone Transition for New York Between Dates

https://api.tradinghours.com/v3/timezones/transitions?timezone=america/new_york&start=2020-01-01&end=2025-12-31

# Get Timezone Transition for New York in CSV Format

https://api.tradinghours.com/v3/timezones/transitions?timezone=america/new_york&format=csv

# Sample JSON Response

{
  "data": [
    {
      "timestamp": 1636264800,
      "time": "2021-11-07T06:00:00+0000",
      "offset": -18000,
      "is_dst": false,
      "abbreviation": "EST"
    },
    {
      "timestamp": 1647154800,
      "time": "2022-03-13T07:00:00+0000",
      "offset": -14400,
      "is_dst": true,
      "abbreviation": "EDT"
    },
    {
      "timestamp": 1667714400,
      "time": "2022-11-06T06:00:00+0000",
      "offset": -18000,
      "is_dst": false,
      "abbreviation": "EST"
    },
    {
      "timestamp": 1678604400,
      "time": "2023-03-12T07:00:00+0000",
      "offset": -14400,
      "is_dst": true,
      "abbreviation": "EDT"
    },
    {
      "timestamp": 1699164000,
      "time": "2023-11-05T06:00:00+0000",
      "offset": -18000,
      "is_dst": false,
      "abbreviation": "EST"
    },
    {
      "timestamp": 1710054000,
      "time": "2024-03-10T07:00:00+0000",
      "offset": -14400,
      "is_dst": true,
      "abbreviation": "EDT"
    },
    {
      "timestamp": 1730613600,
      "time": "2024-11-03T06:00:00+0000",
      "offset": -18000,
      "is_dst": false,
      "abbreviation": "EST"
    },
    {
      "timestamp": 1741503600,
      "time": "2025-03-09T07:00:00+0000",
      "offset": -14400,
      "is_dst": true,
      "abbreviation": "EDT"
    },
    {
      "timestamp": 1762063200,
      "time": "2025-11-02T06:00:00+0000",
      "offset": -18000,
      "is_dst": false,
      "abbreviation": "EST"
    },
    {
      "timestamp": 1772953200,
      "time": "2026-03-08T07:00:00+0000",
      "offset": -14400,
      "is_dst": true,
      "abbreviation": "EDT"
    }
  ],
  "meta": {
    "start": "2021-07-18",
    "end": "2026-07-18"
  }
}

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