Google: Updates an existing calendar on the user's calendar list — request body — body

API reference · Contract 2026-10-27

SDK schema: Updates an existing calendar on the user's calendar list — request body — body

Field	Type	Presence	Description and constraints
$	object	Root
accessRole	string	Optional	The effective access role that the authenticated user has on the calendar. Read-only. Possible values are: - “freeBusyReader” - Provides read access to free/busy information. - “reader” - Provides read access to the calendar. Private events will appear to users with reader access, but event details will be hidden. - “writerWithoutPrivateAccess” - Provides read and write access to the calendar. Private events will appear to users with writerWithoutPrivateAccess access, but event details will be hidden. - “writer” - Provides read and write access to the calendar. Private events will appear to users with writer access, and event details will be visible. - “owner” - Provides manager access to the calendar. This role has all of the permissions of the writer role with the additional ability to see and modify access levels of other users. Important: the owner role is different from the calendar’s data owner. A calendar has a single data owner, but can have multiple users with owner role.
autoAcceptInvitations	boolean	Optional	Whether this calendar automatically accepts invitations. Only valid for resource calendars. Read-only.
backgroundColor	string	Optional	The main color of the calendar in the hexadecimal format “#0088aa”. This property supersedes the index-based colorId property. To set or change this property, you need to specify colorRgbFormat=true in the parameters of the insert, update and patch methods. Optional.
colorId	string	Optional	The color of the calendar. This is an ID referring to an entry in the calendar section of the colors definition (see the colors endpoint). This property is superseded by the backgroundColor and foregroundColor properties and can be ignored when using these properties. Optional.
conferenceProperties	Model	Optional	Expand Returns metadata for a calendar — response body — conference Properties Conferencing properties for this calendar, for example what types of conferences are allowed.
dataOwner	string	Optional	The email of the owner of the calendar. Set only for secondary calendars. Read-only.
defaultReminders	array	Optional	The default reminders that the authenticated user has for this calendar.
defaultReminders[]	Model	Each item	Expand Updates an existing calendar on the user’s calendar list — request body — body default Reminders item
deleted	boolean	Optional	Whether this calendar list entry has been deleted from the calendar list. Read-only. Optional. The default is False. Default: false
description	string	Optional	Description of the calendar. Optional. Read-only.
etag	string	Optional	ETag of the resource.
foregroundColor	string	Optional	The foreground color of the calendar in the hexadecimal format “#ffffff”. This property supersedes the index-based colorId property. To set or change this property, you need to specify colorRgbFormat=true in the parameters of the insert, update and patch methods. Optional.
hidden	boolean	Optional	Whether the calendar has been hidden from the list. Optional. The attribute is only returned when the calendar is hidden, in which case the value is true. Default: false
id	string	Optional	Identifier of the calendar.
kind	string	Optional	Type of the resource (“calendar#calendarListEntry”). Default: calendar#calendarListEntry
location	string	Optional	Geographic location of the calendar as free-form text. Optional. Read-only.
notificationSettings	object	Optional	The notifications that the authenticated user is receiving for this calendar.
notificationSettings.notifications	array	Optional	The list of notifications set for this calendar.
notificationSettings.notifications[]	Model	Each item	Expand Returns a calendar from the user’s calendar list — response body — notification Settings notifications item
primary	boolean	Optional	Whether the calendar is the primary calendar of the authenticated user. Read-only. Optional. The default is False. Default: false
selected	boolean	Optional	Whether the calendar content shows up in the calendar UI. Optional. The default is False. Default: false
summary	string	Optional	Title of the calendar. Read-only.
summaryOverride	string	Optional	The summary that the authenticated user has set for this calendar. Optional.
timeZone	string	Optional	The time zone of the calendar. Optional. Read-only.

Referenced models: Returns a calendar from the user’s calendar list — response body — notification Settings notifications item, Returns metadata for a calendar — response body — conference Properties, Updates an existing calendar on the user’s calendar list — request body — body default Reminders item