The workflow JSON
Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →
{
"updatedAt": "2026-02-15T22:16:31.754Z",
"createdAt": "2025-03-30T13:45:55.100Z",
"id": "PgcWZStiOuLupudm",
"name": "Alarm",
"description": null,
"active": true,
"isArchived": false,
"nodes": [
{
"parameters": {
"httpMethod": "POST",
"path": "alarm",
"options": {}
},
"type": "n8n-nodes-base.webhook",
"typeVersion": 2,
"position": [
0,
0
],
"id": "c6658ddc-dfa1-4aa4-87ba-90327964a377",
"name": "Webhook"
},
{
"parameters": {
"conditions": {
"options": {
"caseSensitive": true,
"leftValue": "",
"typeValidation": "strict",
"version": 2
},
"conditions": [
{
"id": "046c7bd1-72f2-4f19-b520-cc8c3192007b",
"leftValue": "={{ $json.body.alarm }}",
"rightValue": "no scheduled alarm",
"operator": {
"type": "string",
"operation": "equals",
"name": "filter.operator.equals"
}
}
],
"combinator": "and"
},
"options": {}
},
"type": "n8n-nodes-base.if",
"typeVersion": 2.2,
"position": [
224,
0
],
"id": "95d5c741-926e-4831-94c5-cd5c4fa8d34b",
"name": "If"
},
{
"parameters": {
"resource": "service",
"operation": "call",
"domain": "script",
"service": "turn_off_alarm"
},
"type": "n8n-nodes-base.homeAssistant",
"typeVersion": 1,
"position": [
448,
-96
],
"id": "33390e41-2661-4b8b-a961-b3c9a81c4d9b",
"name": "Home Assistant",
"credentials": {
"homeAssistantApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"resource": "service",
"operation": "call",
"domain": "automation",
"service": "turn_on"
},
"type": "n8n-nodes-base.homeAssistant",
"typeVersion": 1,
"position": [
448,
112
],
"id": "51a83130-853a-4593-983c-adfdd37f46e7",
"name": "Home Assistant1",
"executeOnce": true,
"credentials": {
"homeAssistantApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"resource": "state",
"operation": "upsert",
"entityId": "input_datetime.alarm",
"state": "={{ $('If').item.json.body.alarm }} - 5m"
},
"type": "n8n-nodes-base.homeAssistant",
"typeVersion": 1,
"position": [
672,
112
],
"id": "45af9566-9bd3-4df6-b0d5-ac12e1426a08",
"name": "Home Assistant2",
"executeOnce": true,
"credentials": {
"homeAssistantApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"operation": "subtractFromDate",
"magnitude": "={{ $json.newDate }}",
"timeUnit": "minutes",
"duration": "={{ parseInt( $('Webhook').item.json.body.alarm.split(':')[1])*-1}}",
"options": {
"includeInputFields": false
}
},
"type": "n8n-nodes-base.dateTime",
"typeVersion": 2,
"position": [
1104,
112
],
"id": "af37068e-af7b-45e0-b980-1e3153f7eeba",
"name": "Date & Time1"
},
{
"parameters": {
"operation": "subtractFromDate",
"magnitude": "={{$today}}",
"timeUnit": "hours",
"duration": "={{ parseInt( $('Webhook').item.json.body.alarm.split(':')[0])*-1}}",
"options": {}
},
"type": "n8n-nodes-base.dateTime",
"typeVersion": 2,
"position": [
880,
112
],
"id": "181e9452-bf70-4c8a-bcee-dc39921538d0",
"name": "Date & Time"
},
{
"parameters": {
"resource": "state",
"operation": "upsert",
"entityId": "input_number.n8n_communicator",
"state": "={{ (new Date($json.newDate).getTime() / 1000).toFixed(0) }}\n"
},
"type": "n8n-nodes-base.homeAssistant",
"typeVersion": 1,
"position": [
1536,
112
],
"id": "9d3d475c-233f-4faf-aff5-87c0f11ec587",
"name": "Home Assistant3",
"credentials": {
"homeAssistantApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"resource": "service",
"operation": "call",
"domain": "script",
"service": "1743407877695"
},
"type": "n8n-nodes-base.homeAssistant",
"typeVersion": 1,
"position": [
1760,
112
],
"id": "bda42df9-84e1-403c-b726-1a9e84c53049",
"name": "Home Assistant4",
"credentials": {
"homeAssistantApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"operation": "addToDate",
"magnitude": "={{ $json.newDate }}",
"timeUnit": "minutes",
"duration": -5,
"options": {}
},
"type": "n8n-nodes-base.dateTime",
"typeVersion": 2,
"position": [
1312,
112
],
"id": "a207cb84-7968-4e26-8a68-d46144e1f407",
"name": "Date & Time2"
}
],
"connections": {
"Webhook": {
"main": [
[
{
"node": "If",
"type": "main",
"index": 0
}
]
]
},
"If": {
"main": [
[
{
"node": "Home Assistant",
"type": "main",
"index": 0
}
],
[
{
"node": "Home Assistant1",
"type": "main",
"index": 0
}
]
]
},
"Home Assistant1": {
"main": [
[
{
"node": "Home Assistant2",
"type": "main",
"index": 0
}
]
]
},
"Home Assistant2": {
"main": [
[
{
"node": "Date & Time",
"type": "main",
"index": 0
}
]
]
},
"Date & Time1": {
"main": [
[
{
"node": "Date & Time2",
"type": "main",
"index": 0
}
]
]
},
"Date & Time": {
"main": [
[
{
"node": "Date & Time1",
"type": "main",
"index": 0
}
]
]
},
"Home Assistant3": {
"main": [
[
{
"node": "Home Assistant4",
"type": "main",
"index": 0
}
]
]
},
"Date & Time2": {
"main": [
[
{
"node": "Home Assistant3",
"type": "main",
"index": 0
}
]
]
}
},
"settings": {
"executionOrder": "v1",
"callerPolicy": "workflowsFromSameOwner",
"errorWorkflow": "HSzWI1GrRqzS4mra",
"executionTimeout": 3600,
"availableInMCP": false,
"timeSavedPerExecution": 60
},
"staticData": null,
"meta": {
"templateCredsSetupCompleted": true
},
"versionId": "4f9e21ff-eff8-435d-84a3-cde7e11a1246",
"activeVersionId": "20286d16-39bd-4d20-bef6-61411d0da355",
"versionCounter": 33,
"triggerCount": 1,
"tags": [],
"shared": [
{
"updatedAt": "2025-03-30T13:45:55.100Z",
"createdAt": "2025-03-30T13:45:55.100Z",
"role": "workflow:owner",
"workflowId": "PgcWZStiOuLupudm",
"projectId": "jKUmWjF06DKNXlFU",
"project": {
"updatedAt": "2024-11-03T18:52:12.752Z",
"createdAt": "2024-11-03T18:46:00.929Z",
"id": "jKUmWjF06DKNXlFU",
"name": "Bence Daniel <bence.daniel99@gmail.com>",
"type": "personal",
"icon": null,
"description": null,
"creatorId": "cb9c5e06-042d-4f46-9622-b87c0e97c834"
}
}
]
}
Credentials you'll need
Each integration node will prompt for credentials when you import. We strip credential IDs before publishing — you'll add your own.
homeAssistantApi
Pro
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About this workflow
Alarm. Uses homeAssistant. Webhook trigger; 10 nodes.
Source: https://github.com/bencedaniel/n8n-workflows/blob/c4734c3293c5a2030cd1b08f6825df23dc98b072/workflows/alarm/alarm.json — original creator credit. Request a take-down →
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