What is the default convergence times when using RSTP?   Unlike STP I understand that RSTP has three timing intervals before it begans to converge.
RSTP 
Hello timer                >>> 2 seconds
MAX-AGE                    >>> 6 seconds
Forward-Delay (Learning)   >>>  ? seconds
Default convergence time ?
STP 
Hello timer               >>>   2 seconds
MAX-AGE                    >>> 20 seconds
Forward-Delay (Listening)  >>> 15 seconds
Forward-Delay (Learning)   >>> 15 seconds
Default convergence time 50 seconds
If I am understanding things correctly
1. The Hello interval are the same as STP which is every 2 seconds. 
2. The default Max-Age time for RSTP is 3 times the hello interval or 6 seconds.
 
3.RSTP elminates the listening state however, there is a learning state.
What is the default time that RSTP stays in the learning state before is transitions to either forwarding or discarding? 
I can't seem to find this information.