# Calendar

Your calendar is kept with your mailbox, so it comes with a team: once a leader gives you
an address and the team has Calendar on, **Calendar** is in the sidebar.

The page lists your events from today on. **View earlier** shows the days before. Open an
event to see when and where it is, its calendar, its guests and their answers, and its
notes.

## Making an event

Press **New** at the top of the page. Give the event:

- a **Title**, and when it **Starts** and **Ends**, or **All day**;
- **Repeat**: **Daily**, **Weekly** on the days you pick, **Monthly** or **Yearly**,
  and under **Until**: **Never**, **On a date**, or **After** a number of times, up to
  730;
- the **Calendar** it goes in, **Where**, **Guests** and **Notes**.

Your first calendar is called `theorem`. The assistant can make more for you, each in one
of six colours.

## Guests

When an event has guests, the form says **Guests will be sent mail**. Each guest gets an
invitation from your own address. Changing the event sends them an update, and deleting it
sends a cancellation. A guest's answer comes back to you the same way.

From an address on a team's own domain, guests outside Theorem are kept on the event but
not mailed, as with any mail from that domain ([Mail](/workspace/mail)). The form still
says guests will be sent mail; ask the assistant about the event to learn who was not.

An invitation from someone else on Theorem arrives in your `theorem` calendar. Answer it
with **Accept**, **Maybe** or **Decline**.

## Repeating events

When you change or delete one event of a series, Theorem asks whether it is for **This
event** or **All events**.

## What the assistant can do

With the **Calendar** connection on, the assistant can list your calendars and events,
search them, read an event and find free time. It can make a calendar and change one. It
asks you before it makes, changes or deletes an event, and before it answers an
invitation, because each of those can send mail to the guests.