curl --request PATCH \
  --url https://api.cal.com/v2/organizations/{orgId}/users/{userId}/schedules/{scheduleId} \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "One-on-one coaching",
  "timeZone": "Europe/Rome",
  "availability": [
    {
      "days": [
        "Monday",
        "Tuesday"
      ],
      "startTime": "09:00",
      "endTime": "10:00"
    }
  ],
  "isDefault": true,
  "overrides": [
    {
      "date": "2024-05-20",
      "startTime": "12:00",
      "endTime": "14:00"
    }
  ]
}
'

import requests

url = "https://api.cal.com/v2/organizations/{orgId}/users/{userId}/schedules/{scheduleId}"

payload = {
    "name": "One-on-one coaching",
    "timeZone": "Europe/Rome",
    "availability": [
        {
            "days": ["Monday", "Tuesday"],
            "startTime": "09:00",
            "endTime": "10:00"
        }
    ],
    "isDefault": True,
    "overrides": [
        {
            "date": "2024-05-20",
            "startTime": "12:00",
            "endTime": "14:00"
        }
    ]
}
headers = {"Content-Type": "application/json"}

response = requests.patch(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'PATCH',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({
    name: 'One-on-one coaching',
    timeZone: 'Europe/Rome',
    availability: [{days: ['Monday', 'Tuesday'], startTime: '09:00', endTime: '10:00'}],
    isDefault: true,
    overrides: [{date: '2024-05-20', startTime: '12:00', endTime: '14:00'}]
  })
};

fetch('https://api.cal.com/v2/organizations/{orgId}/users/{userId}/schedules/{scheduleId}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.cal.com/v2/organizations/{orgId}/users/{userId}/schedules/{scheduleId}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PATCH",
  CURLOPT_POSTFIELDS => json_encode([
    'name' => 'One-on-one coaching',
    'timeZone' => 'Europe/Rome',
    'availability' => [
        [
                'days' => [
                                'Monday',
                                'Tuesday'
                ],
                'startTime' => '09:00',
                'endTime' => '10:00'
        ]
    ],
    'isDefault' => true,
    'overrides' => [
        [
                'date' => '2024-05-20',
                'startTime' => '12:00',
                'endTime' => '14:00'
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

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

func main() {

	url := "https://api.cal.com/v2/organizations/{orgId}/users/{userId}/schedules/{scheduleId}"

	payload := strings.NewReader("{\n  \"name\": \"One-on-one coaching\",\n  \"timeZone\": \"Europe/Rome\",\n  \"availability\": [\n    {\n      \"days\": [\n        \"Monday\",\n        \"Tuesday\"\n      ],\n      \"startTime\": \"09:00\",\n      \"endTime\": \"10:00\"\n    }\n  ],\n  \"isDefault\": true,\n  \"overrides\": [\n    {\n      \"date\": \"2024-05-20\",\n      \"startTime\": \"12:00\",\n      \"endTime\": \"14:00\"\n    }\n  ]\n}")

	req, _ := http.NewRequest("PATCH", url, payload)

	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.patch("https://api.cal.com/v2/organizations/{orgId}/users/{userId}/schedules/{scheduleId}")
  .header("Content-Type", "application/json")
  .body("{\n  \"name\": \"One-on-one coaching\",\n  \"timeZone\": \"Europe/Rome\",\n  \"availability\": [\n    {\n      \"days\": [\n        \"Monday\",\n        \"Tuesday\"\n      ],\n      \"startTime\": \"09:00\",\n      \"endTime\": \"10:00\"\n    }\n  ],\n  \"isDefault\": true,\n  \"overrides\": [\n    {\n      \"date\": \"2024-05-20\",\n      \"startTime\": \"12:00\",\n      \"endTime\": \"14:00\"\n    }\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.cal.com/v2/organizations/{orgId}/users/{userId}/schedules/{scheduleId}")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Patch.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n  \"name\": \"One-on-one coaching\",\n  \"timeZone\": \"Europe/Rome\",\n  \"availability\": [\n    {\n      \"days\": [\n        \"Monday\",\n        \"Tuesday\"\n      ],\n      \"startTime\": \"09:00\",\n      \"endTime\": \"10:00\"\n    }\n  ],\n  \"isDefault\": true,\n  \"overrides\": [\n    {\n      \"date\": \"2024-05-20\",\n      \"startTime\": \"12:00\",\n      \"endTime\": \"14:00\"\n    }\n  ]\n}"

response = http.request(request)
puts response.read_body

{
  "status": "success",
  "data": {
    "id": 254,
    "ownerId": 478,
    "name": "Catch up hours",
    "timeZone": "Europe/Rome",
    "availability": [
      {
        "days": [
          "Monday",
          "Tuesday"
        ],
        "startTime": "17:00",
        "endTime": "19:00"
      },
      {
        "days": [
          "Wednesday",
          "Thursday"
        ],
        "startTime": "16:00",
        "endTime": "20:00"
      }
    ],
    "isDefault": true,
    "overrides": [
      {
        "date": "2024-05-20",
        "startTime": "18:00",
        "endTime": "21:00"
      }
    ]
  }
}