How about interval game time?

I find ccTime.
But the documentatiion about it is so less.

I think it is a interval game time?

I have a question about interval game time.

The game time is the game past time.
How to get this?

ccTime is just a simple type representing time in cocos2d. It is defined as float and is interpreted as seconds. What time do you need? If you need to measure any intervals take a look at CCScheduler.