This is interesting. From the end of Ch. 89:
Unseen by anyone, the Defense Professor’s lips curved up in a thin smile. Despite its little ups and downs, on the whole this had been a surprisingly good day
From Ch. 46, after Harry destroys the dementor:
I must admit, Mr. Potter, that although it has had its ups and downs, on the whole, this has been a surprisingly good day.
“Harry, let me verify that your Time-Turner hasn’t been used,” said Professor McGonagall.
“LOOK OVER THERE!” Harry screamed, already sprinting for the door.