In the Calendar app, you can add multiple accounts such as iCloud, Google, Microsoft Exchange, and Yahoo. You can change default settings to make it easier to create new events and to display your calendar in a way that works best for you. For example, you can choose the default calendar for new events, change the duration of new events, and more.

You can also add a CalDAV account by entering your server and account information.

Here’s how to change your Calendar settings on iPhone.

Set up iCloud, Google, Exchange, or Yahoo calendar accounts

1. Start the Settings app on your iPhone.
2. Tap Apps and then tap Calendar.
3. Tap Calendar Accounts and then tap Add Account.
4. Tap a service (iCloud, Microsoft Exchange, or Google, for example). Sign in.

Add a CalDAV account

1. Start the Settings app on your iPhone.
2. Tap Apps and then tap Calendar.
3. Tap Calendar Accounts and then tap Add Account.
4. Tap Add Other Account, then tap CalDAV account.
5. Enter your server and account information.

Note: For an account that doesn’t support Push notifications, set a Fetch schedule to update your calendar from it. First, go to Settings > Apps > Calendar. Tap Calendar Accounts, and then tap Fetch New Data. Under Fetch, choose a schedule, or choose Automatically to download new data when your iPhone is charging and connected to Wi-Fi.

Choose a default calendar

With multiple calendars, you can choose a default one, and new events you create land in that calendar automatically.

1. Start the Settings app on your iPhone.
2. Tap Apps and then tap Calendar.
3. Tap Default Calendar, then select the calendar you want to use as your default calendar.

Note: Even after you create an event, you can always move it to a different calendar.

Set default event settings

Calendar events have default settings you can change, too, such as the duration for new events or getting an alert when it’s time to leave for an upcoming event.

1. Start the Settings app on your iPhone.
2. Tap Apps and then tap Calendar.
3. Do any of the following:
   • Choose when to get alerts for different types of events: Tap Default Alert Times, tap Birthdays, Events, or All-Day Events, and choose an option.
   • Choose whether to be alerted when it’s time to leave for an upcoming event: Tap Default Alert Times. Turn Time to Leave on or off.
   • Change the default duration for new events: Tap Duration for New Events. Choose a length of time.
   • Choose whether Calendar suggests a location when you create a new event: Turn Location Suggestions on or off.

Change how your calendar is displayed

To help highlight the information that’s most important to you, customize the way your calendar is displayed. You might choose which day to start the week with, for example, or display the Chinese, Hebrew, or Hijri calendar alongside the Gregorian calendar.

1. Start the Settings app on your iPhone.
2. Tap Apps and then tap Calendar.
3. Do any of the following:
   • Display the Chinese, Hebrew, or Hijri calendar: Tap Alternate Calendars and choose a calendar.
   • Display the week number next to every week of the year: Turn on Week Numbers.
   • Show the current day as the first day in Week view: Turn on Week View Starts On Today.
   • Choose a different day to start the week: Tap Start Week On, then tap a day.

You can allow Siri to make suggestions across apps based on the way you use Calendar. Go to Settings > Apps > Calendar, tap Siri, then turn on Learn from this App. You can also allow suggestions and content from Calendar to appear in Search, widgets, and as notifications.

In the Calendar app, you can send meeting and event invitations. iCloud, Microsoft Exchange, and some CalDAV servers also let you send meeting invitations, though not all calendar servers support every feature.

There’s one thing to check first. Before you can invite people to events you’ve scheduled, your calendar accounts need to be turned on. And once an event is scheduled, you can quickly email attendees.

Here’s how to send invitations in Calendar on iPhone.

Before you begin

To invite people to events you’ve scheduled, your calendar accounts need to be turned on first.

1. Start the Settings app on your iPhone.
2. Tap Apps and then tap Calendar.
3. Tap Calendar Accounts and select an account. Then check to see if Calendar is turned on.

Invite others to an event

You can invite people to an event you’ve scheduled.

1. Start the Calendar app on your iPhone.
2. Tap the event, then tap Edit.
3. Tap Invitees.
4. Do any of the following:
   • Add a name from your contacts: Enter a contact’s name, tap the name, and then tap the Done button.

     You can also tap the Add button to select contacts.

     Note: The contact must have an email address or phone number (supported in China and India).

   • Add an email address: Enter an email address, tap Return, and tap the Done button.
   • Add a phone number: Enter a phone number, tap Return, and then tap the Done button.

     Note: Sending a calendar invitation to a phone number is supported only in China and India.

5. To make an invitation optional, tap Invitees, swipe left on an invitee, and then tap Make Optional.
6. When you’re finished, tap the Done button.

If you don’t want to be notified when someone declines a meeting, go to Settings > Apps > Calendar, then turn off Show Invitee Declines.

Note: Even if you’re not the one who scheduled an event, Microsoft Exchange and some other exchange servers let you invite people to it.

Quickly email attendees

If you want to share event details, for example, you can email all attendees of an event.

1. Start the Calendar app on your iPhone.
2. Tap an event that has attendees.
3. Tap Invitees and tap the Send Mail to Invitees button.