# How to Connect Your Calendar to Claude, Google or Outlook

*How-to — 2026-11-10 — by Mahmoud Zalt*

Connect Google Calendar or Microsoft 365 to Claude, find out whether your account can write to the calendar or only read it, and where it stops.

**Short answer.** **Open Connectors in your Claude settings, find Google Calendar or Microsoft 365, click Connect and approve the access on the provider's own screen.** Whether Claude can then create and move events, or only read them, depends on your plan, your connector and what an administrator has enabled. Anthropic's own pages describe both, so check yours rather than assuming.

**About this guide.** Steps, menu names, plans and limits here come from Anthropic's own documentation and help centre, checked on 17 August 2026. We are not affiliated with Anthropic, Google or Microsoft. Connectors change often, so confirm the current screens in their documentation before you rely on them.

Connecting a calendar to Claude takes about two minutes. Working out what you just connected takes longer, because Anthropic ships more than one path to your calendar and they do not all grant the same power.

This guide covers both calendars people actually connect, Google and Microsoft 365, gives the real menu paths, and is blunt about the one thing that trips everybody up: read access and write access look identical until you ask for something to be booked.

## Which calendar are you connecting?

Google Calendar and Microsoft 365 are separate connectors with separate rules. Google runs on your own sign-in and, per Anthropic's documentation, is available on Pro, Max, Team and Enterprise plans. Microsoft 365 is listed as available on all plans, Free included, but nobody in the tenant can connect until a Microsoft Entra Global Administrator authorises it once.

|  | Google Calendar | Microsoft 365 |
|---|---|---|
| Plans listed | Pro, Max, Team, Enterprise | Free, Pro, Max, Team, Enterprise |
| Who must approve first | You, plus an Owner on Team and Enterprise | A Microsoft Entra Global Administrator, once for the whole tenant |
| Writing to the calendar | Described differently on different Anthropic pages, check yours | Available through write tools, off by default for organisations that connected earlier |
| Where an admin manages it | Organization settings, then Connectors | Organization settings, then Connectors |

## Connecting Google Calendar to Claude

There are two documented ways in, and both end at the same Google approval screen. Anthropic's documentation describes going to Customize, then Connectors in claude.ai. The help centre describes the in-chat route instead: click the plus sign, hover over Connectors, and toggle Google Calendar on.

### Connecting Google Calendar

1. **Open Connectors** — Either from Customize, then Connectors in claude.ai, or from the plus sign inside a chat where hovering over Connectors reveals the list.
2. **Find Google Calendar and click Connect** — On Team and Enterprise plans it will not appear at all until an Owner or Primary Owner has enabled it for the organisation, so an empty list is usually an admin question rather than a bug.
3. **Sign in and read the Google consent screen** — Google lists every permission being requested. This is where you learn whether you are granting viewing only or full event management. Read it, then approve.
4. **Pick the right Google account** — Claude accesses only the account you connect. Anthropic's documentation notes it mirrors your existing calendar permissions, so it sees shared calendars you already have access to and nothing else.
5. **Test with something verifiable** — Ask what meetings you have tomorrow and check the answer against Google Calendar. Anthropic notes that responses include citations pointing at the events used, which makes checking quick.

Now the part nobody warns you about. Anthropic's connector documentation page for Google Calendar carries a warning that Claude cannot create, modify or delete calendar events and cannot send calendar invitations. Their help centre article on Google Workspace connectors describes creating, updating and deleting events, finding mutual availability, managing attendees and responding to invitations.

## Read access or write access, and how to tell

Both descriptions are real. Anthropic has shipped calendar access more than once, on different surfaces and different plans, and the older read-only integration and the newer read-and-write connector have coexisted. Which one you are holding depends on your plan, your surface and when your workspace connected.

**One test settles it.** Ask Claude to create a throwaway event, ten minutes long, tomorrow, called test. If it appears in your calendar, you have write access. If Claude says it cannot, you have the read-only integration and no amount of prompting will change that. This takes fifteen seconds and beats reading three documentation pages.

## Connecting Outlook through the Microsoft 365 connector

Microsoft 365 is the route for an Outlook calendar, and it is gated at the tenant rather than at your account. Anthropic's setup article states that a Microsoft Entra Global Administrator in your tenant must authorise the integration before anyone can connect. On Team and Enterprise, an organisation owner also enables it in Organization settings, then Connectors.

Write tools are the separate switch. Anthropic describes them as covering sending email, managing drafts and calendar events, updating mailbox settings and creating files. Organisations that connected before write tools existed have them blocked by default, and turning them on needs an Entra admin to re-consent to the updated permission scopes before the organisation setting is enabled.

## What a connected calendar still will not do

Even with write access on, a connector is something you talk to. It reads and acts when you open a conversation and ask. Close the tab and your calendar is unattended again, which is fine for questions and useless for the requests that arrive while you are in a meeting.

There is also no memory of your rules. You can explain your buffers, your no-meeting mornings and your travel days in one chat, and the next chat starts from nothing. Every good decision has to be re-explained, which is why people quietly stop asking after a fortnight.

That gap is the reason [Sistava](/personal-ai-assistance) exists. You hire an AI Employee, connect the calendar to it once, and write the rules down as its standing instructions rather than as a prompt you retype. It holds them between conversations, and it can act on a request that arrives when you are nowhere near a keyboard.

## Honest limits, and what to check before you rely on it

Connectors are genuinely useful. They are also narrower than the marketing around them suggests, and here is the short list of things worth verifying yourself.

- **It sees one account.** Anthropic states Claude accesses only the connected account's data, mirroring the calendar permissions you already have.
- **An admin can stop the whole thing.** On Team and Enterprise, an Owner enables connectors for the organisation. For Microsoft 365, an Entra Global Administrator gates the entire tenant.
- **Provider quotas apply.** Anthropic notes that rate limits follow the provider's API quotas and that performance varies with how complicated your account is.
- **Retrieved data lives with the chat.** Anthropic states connector data is retained alongside the conversation, so deleting the chat deletes the retrieved data, and that it is not used to train models.

Use the connector for what it is excellent at: reading your week back to you, spotting the clash you missed, and prepping you for the meeting starting in ten minutes. Then decide separately whether you want something that keeps working after you close the tab, because that is a different kind of tool.

The practical test is whether anything happens when you are not in the conversation. Connect a calendar to an AI Employee at [Sistava](/signup), write down two rules, then send yourself a meeting request from another address and watch what it does without you.

## FAQ

### Where do I turn the Google Calendar connector on?

Anthropic's documentation describes going to Customize, then Connectors in claude.ai, finding Google Calendar and clicking Connect. The help centre describes an in-chat route as well: click the plus sign, hover over Connectors, and toggle Google Calendar on. Both end at Google's own sign-in and permission screen.

### Which plans include the Google Calendar connector?

Anthropic's documentation page lists it as available on Pro, Max, Team and Enterprise plans. On Team and Enterprise, an Owner or Primary Owner must enable it for the organisation before it appears in your own connector list.

### Can Claude create or move calendar events?

It depends which calendar access you have. Anthropic's Google Calendar documentation page warns that Claude cannot create, modify or delete events, while their help centre describes creating, updating and deleting events. The fastest way to know is to ask Claude to create a short throwaway event and see whether it appears.

### How do I connect an Outlook calendar?

Through the Microsoft 365 connector. Anthropic's setup article states a Microsoft Entra Global Administrator in your tenant must authorise the integration before anyone can connect, and on Team and Enterprise an organisation owner enables it in Organization settings, then Connectors.

### Why can Claude read my Microsoft calendar but not change it?

Write tools are a separate permission. Anthropic notes that organisations which connected before write tools launched have them blocked by default. Turning them on requires an Entra admin to re-consent to the updated permission scopes, then enabling write tools for the connector in Organization settings.

### What happens to my calendar data?

Anthropic states that Claude accesses your data only when you explicitly ask a question or request an action that needs it, that retrieved data is retained with its associated chat so deleting the chat deletes the data, and that models are not trained on connector data from these services.

## Sources

- [Anthropic, ](https://claude.com/docs/connectors/google/calendar)Google Calendar integration, including its stated limitations
- [Claude Help Center, ](https://support.claude.com/en/articles/10166901-use-google-workspace-connectors)Use Google Workspace connectors
- [Claude Help Center, ](https://support.claude.com/en/articles/12542951-set-up-the-microsoft-365-connector)Set up the Microsoft 365 connector
- [Claude Help Center, ](https://support.claude.com/en/articles/15183774-connect-to-microsoft-365)Connect to Microsoft 365
- [Anthropic, ](https://claude.com/connectors/microsoft-365)Microsoft 365 connector overview

**Tags:** claude, calendar, connectors, microsoft-365, google-calendar