You can probably modify this to help you and look for "recovery complete". :http://timlaqua.com/2009/09/determining-how-long-a-database-will-be-in-recovery-sql-server-2008/

The problem is that SQL Server doesn't log individual database times. It logs the start of recovery, and if it takes time, it will get the percentage of effort underway, but I'm not sure that there's a way to get the time it completes for any particular db. At least in a couple instances I have, I don't see the recovery complete time.