How to change the date of an event
Events have both a start date
and an end date
There are two ways to change the dates of an event.
Using a calendar
When an event is selected, details appear at the left
of the screen, including the start and end dates. Click on one of these to change it.
A calendar pops up.
Using the mouse
Move the mouse to one end of the event.
The cursor changes to something like this:
Click and drag the edge to the date you want.
Note that the bottom of the screen always shows the date at the cursor: