This workflow follows the Emailsend → Slack recipe pattern — see all workflows that pair these two integrations.
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 →
{
"id": "JIegnKLVXTkkTzfO",
"meta": {
"templateCredsSetupCompleted": true
},
"name": "Daylight Saving Time Notification",
"tags": [],
"nodes": [
{
"id": "87b11535-a9ae-49d4-a33f-b895274643e5",
"name": "When clicking \u2018Test workflow\u2019",
"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": ""
},
"otherOptions": {},
"authentication": "oAuth2"
},
"credentials": {
"slackOAuth2Api": {
"name": "<your credential>"
}
},
"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"
},
"credentials": {
"smtp": {
"name": "<your credential>"
}
},
"typeVersion": 2.1
}
],
"active": false,
"settings": {
"executionOrder": "v1"
},
"versionId": "7605726a-1a09-4564-b60f-aee3ac0b8c70",
"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 \u2018Test workflow\u2019": {
"main": [
[
{
"node": "Timezones List",
"type": "main",
"index": 0
}
]
]
}
}
}
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.
slackOAuth2Apismtp
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How this works
Stay ahead of daylight saving time disruptions by receiving timely notifications about upcoming clock changes in your team's key time zones, ensuring smoother scheduling and fewer missed meetings. This workflow suits remote teams or global businesses coordinating across regions like Europe and North America, where such shifts can cause confusion. It calculates current and future dates, checks for transitions, and sends alerts via Slack or email, with the pivotal step being the conditional check that flags changes occurring the next day.
Use this workflow for automated reminders before biannual adjustments, particularly if your operations span multiple time zones and rely on precise timing. Avoid it for single-location setups unaffected by DST, or when you prefer manual calendar checks over automated pings. Common variations include customising notifications for specific zones or integrating with calendar apps to auto-adjust events.
About this workflow
Daylight Saving Time Notification. Uses manualTrigger, stickyNote, slack, dateTime. Event-driven trigger; 10 nodes.
Source: https://github.com/Zie619/n8n-workflows — original creator credit. Request a take-down →
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