How to specify an beginTime for an animation by using CFTimeInterval?

Question

For my understanding, beginTime can be used to say \"hey, start at exactly 12:00 \'o clock\". But how would I tell this with an CFTimeInterval type? I thought that this one is n

Answer 1

I think the documentation of CAMediaTiming Protocol is very bad. Time Warp in Animation is a thorough explanation(re-documentation) of all properties of CAMediaTiming Protocol.