Automate Everhour time-off sync to Google Calendar with all-day events

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Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

Who’s it for Teams that track absences in Everhour and want a shared Google Calendar view for quick planning. Ideal for managers, HR/OPS, and teammates who need instant visibility into approved tim...

Best for

File Management automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.scheduletrigger, n8n-nodes-base.code, n8n-nodes-base.httprequest, n8n-nodes-base.if, n8n-nodes-base.set, n8n-nodes-base.googlecalendar, n8n-nodes-base.stickynote

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Hossein Karami.

Original n8n.io source

1.1 Workflow description

Title: Automate Everhour time-off sync to Google Calendar with all-day events
Workflow name: Automate Everhour time-off sync to Google Calendar with all-day events

Who’s it for

Teams that track absences in Everhour and want a shared Google Calendar view for quick planning. Ideal for managers, HR/OPS, and teammates who need instant visibility into approved time off.

What it does

Pulls approved time-off from Everhour on a schedule
Creates/updates all-day events per day of absence in Google Calendar
Removes stale events if a request changes or is canceled
Uses a stable external key (everhour:ASSIGNMENT_ID:YYYY-MM-DD) to avoid duplicates

How it works

A Schedule Trigger runs periodically → the workflow fetches Everhour assignments, filters approved time-off, expands multi-day requests into single-day items, then searches by external key to either create or update events. Separate cleanup steps list calendar events and delete any that are no longer present in Everhour.

How to set up

In n8n, create an HTTP Header Auth credential for Everhour with header X-Api-Key: {YOUR_EVERHOUR_API_KEY} .
Add a Google Calendar OAuth credential.
Open the Config node and set your calendarId (e.g., [email protected]).
Enable the workflow and choose your schedule.

Requirements

Everhour account with API access
Google Calendar (workspace or personal)
n8n Cloud or self-hosted

How to customize the workflow

Adjust the schedule (hourly/daily).
Filter by user or time-off type.
Tweak the event title/description templates.
Point to multiple calendars (duplicate the create/update branch per calendar).

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - Schedule Trigger

Type / Role: n8n-nodes-base.scheduleTrigger - scheduleTrigger
Config choices: Version 1.2

Block 2 - Build Assignment Groups

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 3 - Build Global Key Set

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 4 - Everhour - Fetch Time Off

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 5 - Filter Approved Time-Off

Type / Role: n8n-nodes-base.if - if
Config choices: Version 2.2

Block 6 - Build Calendar Payload

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

Block 7 - Prepare Time-Off Items

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 8 - Find Existing Event by External Key

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 9 - Attach Found Event ID

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 10 - Check if Event Exists

Type / Role: n8n-nodes-base.if - if
Config choices: Version 2.2

Block 11 - Update All-Day Event

Type / Role: n8n-nodes-base.googleCalendar - googleCalendar
Config choices: Version 1.3

Block 12 - Create All-Day Event

Type / Role: n8n-nodes-base.googleCalendar - googleCalendar
Config choices: Version 1.3

Block 13 - List Assignment Events

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 14 - Find Obsolete Events (per assignment)

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 15 - Delete Calendar Event

Type / Role: n8n-nodes-base.googleCalendar - googleCalendar
Config choices: Version 1.3

Block 16 - List All Everhour Events

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 17 - Find Obsolete Events (global)

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 18 - Config

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

Block 19 - 🗒️ Template Description (Read Me)

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 20 - Note: Fetch Everhour

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 21 - Note: Build Keys

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 22 - Note: Upsert Events

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 23 - Note: Cleanup

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

3. Summary Table

Workflow	Automate Everhour time-off sync to Google Calendar with all-day events
Complexity	advanced
Nodes	23
Categories	File Management
Author	Hossein Karami
Published	05 Sept 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/8305/8305.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.
4. Test with sample data

Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.
5. Activate and monitor

Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Download workflow JSON Original n8n.io source File Management workflows

Frequently asked questions

What does Automate Everhour time-off sync to Google Calendar with all-day events do?

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your File Management use case.

Hossein Karami

1 workflow

Nodes

n8n-nodes-base.scheduletrigger n8n-nodes-base.code n8n-nodes-base.httprequest n8n-nodes-base.if n8n-nodes-base.set n8n-nodes-base.googlecalendar n8n-nodes-base.stickynote

Complexity

advanced

Published 05 Sept 2025

Likes 0

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Install path: /data/workflows/8305/8305.json

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Automate Everhour time-off sync to Google Calendar with all-day events

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

Who’s it for

What it does

How it works

How to set up

Requirements

How to customize the workflow

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Schedule Trigger

Block 2 - Build Assignment Groups

Block 3 - Build Global Key Set

Block 4 - Everhour - Fetch Time Off

Block 5 - Filter Approved Time-Off

Block 6 - Build Calendar Payload

Block 7 - Prepare Time-Off Items

Block 8 - Find Existing Event by External Key

Block 9 - Attach Found Event ID

Block 10 - Check if Event Exists

Block 11 - Update All-Day Event

Block 12 - Create All-Day Event

Block 13 - List Assignment Events

Block 14 - Find Obsolete Events (per assignment)

Block 15 - Delete Calendar Event

Block 16 - List All Everhour Events

Block 17 - Find Obsolete Events (global)

Block 18 - Config

Block 19 - 🗒️ Template Description (Read Me)

Block 20 - Note: Fetch Everhour

Block 21 - Note: Build Keys

Block 22 - Note: Upsert Events

Block 23 - Note: Cleanup

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions