Add and edit an event in a calendar on iCloud.com
You can add one-time, recurring, all-day, and multi-day events to your calendars.
You can invite other people to an event, add notes, and more.
Create an event
Go to icloud.com/calendar, then sign in to your Apple Account (if necessary).
Tap
in the top-right corner.Tip: To create an event from the iCloud.com homepage, tap
in the corner of the Calendar tile. To create a new event from anywhere on iCloud.com, tap 
in the toolbar, then tap Calendar Event.Type a name and location for the event, then do any of the following:
Choose which calendar the event belongs to: If you have multiple calendars and want to add the event to a different calendar, tap the Calendar pop-up menu, then choose an option.
Make the event last all day: Turn on All Day
Set the event’s date and time: Tap the Starts and Ends fields, then adjust the dates or times.
Set the event’s time zone: Tap the Time Zone pop-up menu, then choose an option. If you don’t see the Time Zone pop-up menu, turn on Time Zone support.
Keep the event in the same time zone (even if the calendar’s time zone changes): Tap the Time Zone pop-up menu, then choose Floating.
Make the event a multi-day event: Select All Day, then specify dates in the Starts and Ends fields.
Make the event a repeating event: Tap the Repeat pop-up menu, then choose an option.
Add invitees: Tap
next to Invitees, then enter one or more email addresses. See invite other people to learn more.Add attachments: Tap
next to Attachments, then choose a file to upload. A paper clip icon 
appears on the event to indicate there’s an attachment.Add a link to an event: Type in the URL field.
Add a note to an event: Type in the Notes field.
You can also set an alert.
Tap Add.
Set the default calendar that events are added to
Go to icloud.com/calendar, then sign in to your Apple Account (if necessary).
Tap
at the top of the sidebar, then choose Settings.Tap Events, then tap the “Add Events & Invitations to” pop-up menu, then choose a calendar.
Tap
.
Move an event to another calendar
You can move any event to another calendar that you own or that has been shared with you.
Go to icloud.com/calendar, then sign in to your Apple Account (if necessary).
Tap the event you want to move.
Tap the Calendar pop-up menu.
Choose which calendar you want to move the event to, then tap Save.
You can change an event’s settings at any time. Tap an event to open it and make adjustments.