HOW TO CHANGE YOUR DEFAULT CALENDAR - Users - How do I? | Google Groups

HOW TO CHANGE YOUR DEFAULT CALENDAR - Users - How do I? | Google Groups:

"I hope Google makes it possible to change your default calendar. I can
see how it might be difficult because the default calendar is the one
you started your account with, and it always the top one.

But there is a way to make another calendar the default. Here's how I
did it (in these steps, export and import are done following the
excellent Google help instructions):

FAMILY is my default; it's on top. PERSONAL is the one I want for my default, and it's further down.

1. Export both as iCal files to your computer.
2. On the Calendars Page, click the trash basket for FAMILY and delete
all items (scary, but it's OK :)
3. Then click the trash basket for PERSONAL and delete it entirely.
4. Rename FAMILY to PERSONAL
5. Create a new FAMILY calendar.
6. Import your FAMILY.ics file into the FAMILY calendar, and
PERSONAL,ics into your PERSONAL calendar.

DONE! Took me about 10 minutes because I didn't have these nice
instructions in front of me! PERSONAL is now on top and is your
default. FAMILY is down where PERSONAL was. Now you can do other stuff
like change the colors, notification rules, etc."