How to create another default calendar?

Hi

We have two teams, one working in India and the other working in the Gulf.

I need to create another calendar, which differs from the default calendar in the following ways:
1. There is a time difference of 2 hours (India is 2 hours ahead of Gulf)
2. The weekly off days are different (we have weekend on Sat+Sun, and in the Gulf they have weekend on Fri+Sat)
3. The national holidays are different in the respective country.

I already have set the global parameters for my default calendar.
How do I create one more calendar with these changes?