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Zapier makes it easy to integrate Google Calendar with Harvest - no code necessary. See how you can get setup in minutes.
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Help
Google Calendar
Google Calendar
1. Choose trigger event
Harvest
Harvest
2. Choose action
1. Select the event
Setup
Test
Google Calendar
Choose a trigger event
Choose a trigger
A trigger is the event that starts your Zap—like a "New Calendar" from Google Calendar.
Add your action
An action happens after the trigger—such as "Create Client" in Harvest.
You’re connected!
Zapier seamlessly connects Google Calendar and Harvest, automating your workflow.
Supported triggers and actions
Zapier helps you create workflows that connect your apps to automate repetitive tasks. A trigger is an event that starts a workflow, and an action is an event a Zap performs.
Create a new record or update an existing record in your app.
Project
Name
Required
Billable By Default
Default Hourly Rate
Is Default
Action
This is an event a Zap performs.
Write
Create a new record or update an existing record in your app.
Project
Required
Task
Required
Started Time
Required
Ended Time
Required
Spent Date
Required
Notes
Action
This is an event a Zap performs.
Write
Create a new record or update an existing record in your app.
Stop Timer
Stops any running timers
Action
This is an event a Zap performs.
Write
Create a new record or update an existing record in your app.
Client name
Client ID
Action
This is an event a Zap performs.
Search
Find existing data in your app
Name
Required
Action
This is an event a Zap performs.
Search
Find existing data in your app
For AI agents & developers
Use Google Calendar and Harvest with AI agents and code
Beyond Zap workflows. Call Google Calendar and Harvest actions directly from your AI client or your codebase, using the same 9,000+ app integrations Zapier already runs.
No code
Connect via Zapier MCP
Expose Google Calendar and Harvest actions as tools in any MCP client. Authenticate once, then call them in natural language.
Example actions on this page
Add Attendee(s) to Event
Create Client
Works with
Claude · ChatGPT · Cursor · any MCP-compatible client
There is no Python package yet. SDK is TypeScript-only (@zapier/zapier-sdk). The MCP server URL is personal to your account; get it at zapier.com/mcp.
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Customers have created over 25 million Zaps on the platform
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The average user takes less than 6 minutes to set up a Zap
Connect Google Calendar and Harvest to integrate crucial parts of your business
With Zapier, you can integrate everything from basic data entry to end-to-end processes. Here are some of the business-critical workflows that people automate with Zapier.
Automate your lead management and improve conversions
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Measuring campaign performance across platforms can get chaotic. Plus, digging up the right metrics costs you precious time and effort. With Zapier, you can create a centralized view of your performance, skillfully manage your lists, and ensure your campaigns drive ROI across the business.
Provide world-class support with a little help from automation
Support reps can't be productive when they have to track down crucial information for every incident or ticket. With Zapier, you can automatically send your reps the context they need to resolve tickets quickly and create a seamless customer experience.
Automate your way to actionable, up-to-date data
The days of manually exporting and importing data are over. With Zapier, you can send data where it needs to go, in the format you need it—so you can centralize your data and unlock more insights.
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Your technical support team wants to focus on tech tickets rather than admin work. With Zapier, you can automate everything from ticket creation to routing to inter-team communication—eliminating friction from incident management and increasing speed to resolution.
Learn how to automate Google Calendar on the Zapier blog
Learn how to automate Harvest on the Zapier blog
Make work flow with AI
Level up your Google Calendar to Harvest integration with AI. Extract, summarize, and transform your integration data with leading AI models like OpenAI, Anthropic, and more.
Frequently Asked Questions about Google Calendar + Harvest integrations
New to automation with Zapier? You're not alone. Here are some answers to common questions about how Zapier works with Google Calendar and Harvest
How does the integration between Google Calendar and Harvest work?
Our integration allows you to automatically create and manage Harvest time entries based on events in your Google Calendar. You can set it up so that whenever an event ends in your calendar, a corresponding time entry can be generated in Harvest. This means no more manual entry, as time tracking is directly linked to your calendar schedule.
What triggers are available when integrating Google Calendar with Harvest?
In our integration, you can utilize triggers like a new event in Google Calendar or an event ending. These triggers allow us to perform actions such as creating or updating time entries in Harvest whenever a specified calendar event occurs.
Can I customize which Google Calendar events create time entries in Harvest?
Yes, you can apply filters so that only specific events in your Google Calendar trigger the creation of time entries in Harvest. For instance, you might only want work-related events or meetings longer than 30 minutes to be logged as billed hours.
Is it possible to update existing time entries in Harvest through the integration?
Absolutely, our integration supports updating existing time entries based on changes to your events in Google Calendar. If an event details change, the corresponding entry in Harvest can be modified accordingly.
How does the integration handle deleted events from my Google Calendar?
When an event is deleted from your Google Calendar, we can automatically remove or update the associated time entry in Harvest if configured to do so. This ensures that your records remain consistent without manual adjustments.
Do I need any special permissions for this integration between Google Calendar and Harvest?
Both services will require proper authorizations: access permission for your selected Google Calendars and appropriate rights within your Harvest account to manage entries. Ensure both accounts are under one profile for seamless operations.
Can I integrate multiple calendars with my single Harvest account?
Yes, our setup supports integrating multiple calendars with one Harvest account. You can specify which calendars should trigger actions, allowing for precise control over how different types of events are managed across various schedules.
About Google Calendar
Google Calendar lets you organize your schedule and share events with co-workers and friends. With Google's free online calendar, it's easy to keep track of your daily schedule.
