I realized during my first file that the court wizard in solitude was always sleeping no matter what time of day it was. The ratio of real to game time is 3 minutes (RT) = 1 hour (GT), so the bonuses last twenty four (RT) minutes. Sybille is also the expert trainer for Destruction. I have the house in Solitude and my spouse always sleeps in the stupid guest room in the basement.
The effects can be seen on the Active Effects section of the Magic Menu. She's going to talk to her contacts about how we can infiltrate the Thalmor Embassy. Only the player, as the prophesied hero the Dovahkiin, can save the world from destruction.