{
  "name": "Daylight Saving Time Notification",
  "nodes": [
    {
      "id": "87b11535-a9ae-49d4-a33f-b895274643e5",
      "name": "When clicking ‘Test workflow’",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        0,
        0
      ],
      "parameters": {},
      "typeVersion": 1
    },
    {
      "id": "d1cd9157-9948-43fd-a725-2a82a21a82c6",
      "name": "Sticky Note1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        340,
        -300
      ],
      "parameters": {
        "width": 394,
        "height": 264,
        "content": "## How it works\n- check list of timezones\n- check if any timezone switches from/to Daylight Saving Time\n- notify on Slack\n\n## Remember to set up\n- Add timezones to \"Timezones List\"\n- Slack notification channel\n"
      },
      "typeVersion": 1
    },
    {
      "id": "0f4369fc-80b6-4fd6-8533-4aacbf4c9c65",
      "name": "Timezones List",
      "type": "n8n-nodes-base.code",
      "position": [
        220,
        0
      ],
      "parameters": {
        "jsCode": "return [\n\t{\n      timezone : \"America/New_York\"\n\t},\n\t{\n      timezone : \"Europe/Warsaw\"\n\t},\n];"
      },
      "typeVersion": 2
    },
    {
      "id": "3c1e6cd7-3812-4670-a53f-7270e29574f9",
      "name": "Calculate Zone Date and Time",
      "type": "n8n-nodes-base.set",
      "position": [
        440,
        0
      ],
      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "4e9f973f-a11f-474b-89ce-dac4a77a7c68",
              "name": "datetime_zone",
              "type": "string",
              "value": "={{ $now.setZone( $json.timezone ) }}"
            }
          ]
        },
        "includeOtherFields": true
      },
      "typeVersion": 3.4
    },
    {
      "id": "7f49ac42-afcb-4552-84da-180bc65b84b0",
      "name": "Check If Daylight Saving Time",
      "type": "n8n-nodes-base.set",
      "position": [
        40,
        280
      ],
      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "4e9f973f-a11f-474b-89ce-dac4a77a7c68",
              "name": "datetime_zone_dst",
              "type": "string",
              "value": "={{ $json.datetime_zone.toDateTime().setZone($json.timezone).isInDST }}"
            },
            {
              "id": "ff13ee6d-c146-4dcb-98c4-6cb9b2474b1d",
              "name": "datetime_zone_tomorrow_dst",
              "type": "string",
              "value": "={{ $json.datetime_zone_tomorrow.toDateTime().setZone($json.timezone).isInDST }}"
            }
          ]
        },
        "includeOtherFields": true
      },
      "typeVersion": 3.4
    },
    {
      "id": "f3596b52-03af-4a07-be04-a7300fc7b239",
      "name": "Check If Change Tomorrow",
      "type": "n8n-nodes-base.if",
      "position": [
        240,
        280
      ],
      "parameters": {
        "options": {},
        "conditions": {
          "options": {
            "version": 2,
            "leftValue": "",
            "caseSensitive": true,
            "typeValidation": "loose"
          },
          "combinator": "and",
          "conditions": [
            {
              "id": "1f49e05d-d36e-4652-8ad3-b2266d750d94",
              "operator": {
                "type": "boolean",
                "operation": "notEquals"
              },
              "leftValue": "={{ $json.datetime_zone_dst }}",
              "rightValue": "={{ $json.datetime_zone_tomorrow_dst }}"
            }
          ]
        },
        "looseTypeValidation": true
      },
      "typeVersion": 2.2
    },
    {
      "id": "612e2e06-0283-4acd-8d85-cba16acb7126",
      "name": "Send Notification On Upcoming Change",
      "type": "n8n-nodes-base.slack",
      "position": [
        660,
        240
      ],
      "parameters": {
        "text": "=Tomorrow is Daylight Saving Time change in zone {{ $json.timezone }} - remember to adjust meeting times!",
        "select": "channel",
        "channelId": {
          "__rl": true,
          "mode": "list",
          "value": "REPLACE_WITH_RESOURCE"
        },
        "otherOptions": {},
        "authentication": "oAuth2"
      },
      "typeVersion": 2.3
    },
    {
      "id": "d5e47ff8-d530-47ee-a98d-3a50a7054cb0",
      "name": "Calculate Tomorrow's Date",
      "type": "n8n-nodes-base.dateTime",
      "position": [
        660,
        0
      ],
      "parameters": {
        "options": {
          "includeInputFields": true
        },
        "duration": 1,
        "magnitude": "={{ $json.datetime_zone }}",
        "operation": "addToDate",
        "outputFieldName": "datetime_zone_tomorrow"
      },
      "typeVersion": 2
    },
    {
      "id": "5ae0aa75-515d-4025-901e-82693f697436",
      "name": "Schedule Trigger",
      "type": "n8n-nodes-base.scheduleTrigger",
      "position": [
        0,
        -160
      ],
      "parameters": {
        "rule": {
          "interval": [
            {}
          ]
        }
      },
      "typeVersion": 1.2
    },
    {
      "id": "e233c67c-a79b-4c96-a172-0465021d3911",
      "name": "Send Email On Upcoming Change",
      "type": "n8n-nodes-base.emailSend",
      "position": [
        660,
        420
      ],
      "parameters": {
        "text": "=Tomorrow is Daylight Saving Time change in zone {{ $json.timezone }} - remember to adjust meeting times!",
        "options": {},
        "subject": "DST change tomorrow in {{ $json.timezone }}",
        "emailFormat": "text"
      },
      "typeVersion": 2.1
    },
    {
      "id": "b6898d9c-1421-5cb6-8a1a-c9484a07d8a9",
      "name": "Publication · Overview and setup",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -800,
        -300
      ],
      "parameters": {
        "content": "# Daylight Saving Time Notification\n\n## Purpose and structure\nThis folder contains the **Daylight Saving Time Notification** workflow. Its executable nodes use `code`, `dateTime`, `emailSend`, `if`, `manualTrigger`, `scheduleTrigger`, `set`, `slack`. The table and connection map below are derived from the JSON, not an inferred guarantee of behavior.\n\n## Setup\nImport inactive. Configure your own credentials and replace REPLACE_WITH_* values. Review external destinations and Code nodes before running.\n\n## Entry points\nWhen clicking ‘Test workflow’, Schedule Trigger\n\n## Verification\nSanitized source candidate; not runtime-tested. This overview is generated from node metadata. Read the folder README for the connection map, credential types, and license.\n\n## Attribution\nhttps://github.com/Zie619/n8n-workflows/blob/94007c1445d9258a7da116646b79473e7c7c3282/workflows/Datetime/1523_Datetime_Code_Automation_Scheduled.json\nMIT; preserve source notices.",
        "width": 700,
        "height": 800,
        "color": 1
      }
    }
  ],
  "active": false,
  "settings": {
    "executionOrder": "v1"
  },
  "connections": {
    "Timezones List": {
      "main": [
        [
          {
            "node": "Calculate Zone Date and Time",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Schedule Trigger": {
      "main": [
        [
          {
            "node": "Timezones List",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Check If Change Tomorrow": {
      "main": [
        [
          {
            "node": "Send Notification On Upcoming Change",
            "type": "main",
            "index": 0
          },
          {
            "node": "Send Email On Upcoming Change",
            "type": "main",
            "index": 0
          }
        ],
        []
      ]
    },
    "Calculate Tomorrow's Date": {
      "main": [
        [
          {
            "node": "Check If Daylight Saving Time",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Calculate Zone Date and Time": {
      "main": [
        [
          {
            "node": "Calculate Tomorrow's Date",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Check If Daylight Saving Time": {
      "main": [
        [
          {
            "node": "Check If Change Tomorrow",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "When clicking ‘Test workflow’": {
      "main": [
        [
          {
            "node": "Timezones List",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  }
}