Create or modify all-day or multi-day events in Calendar on Mac
You can create an event that lasts one or more complete, consecutive days (such as a holiday), or an event that spans multiple days, but has specific start and end times (such as a work shift beginning in the evening and ending the following morning).
Events that last one or more complete days are shown in the All-Day section at the top of Day or Week view.
Create an all-day event
In the Calendar app
on your Mac, click Day or Week at the top of the Calendar window.Double-click in the all-day section at the top of the calendar.
Create a multi-day event
The event can last all day for multiple days, or start at a specific time on one day and end at a specific time on another day.
In the Calendar app
on your Mac, click Day, Week or Month at the top of the Calendar window.Do one of the following:
Create an event that spans multiple consecutive days: In the all-day section of Week view, drag from the start date to the end date.
In Month view, drag from the start date to the end date.
Create an event with specific start and end times: In Week view, drag from the start time to the end time. You can drag across multiple days.
In Day or Month view, double-click to create an event, then enter the start and end dates and times in the event details.
Change an event’s duration
You can increase or decrease the number of days for an event.
In the Calendar app
on your Mac, click Week or Month at the top of the Calendar window.Do one of the following:
In Week view: In the all-day section at the top of the calendar, drag the left or right edge of the event to another day.
In Month view: Drag the left or right edge of the event to another day.
Make an existing event last all day
In the Calendar app
on your Mac, double-click the event, click the date, then select All-Day. (You can also select the event, then use the Touch Bar.)