A great many other people-- and beings across this universe and thousands of others-- would happily share Harry's opinion.
A Beatles song popped into the Doctor's head. He hummed a short few bars. The words that went with the bars were 'I believe in yesterday.'
But now that Harry the Wizard mentioned it, the Doctor understood that something was off. He tilted his head, trying to place it, then licked a finger and held it up into the breeze, trying again.
"You're correct about that. But I don't know what the wrong thing is just yet, do you?"
All of his enchantments, gone. Friends missing.
The Doctor thought. "What day was yesterday," he said, "for you, Harry the Wizard?" He tok a few steps closer to the wizard, slowly. "Day of the week. Date. Month." He paused. "Year?"