Trick Question:
"Linguistically speaking the answer is both... Studies show that when people are asked what day the Wednesday meeting is on if it was moved forward two days, it’s close to a 50-50 split: approximately 50 percent of people assume the meeting is on Monday, the rest think Friday. Fascinatingly, these perspectives are not set in stone. It turns out that the answer depends on people’s recent physical movement. For example, when people who were at an airport to pick someone up were asked the Wednesday question, 51 percent answered Friday, but 76 percent of the people who had just arrived answered Friday."
https://www.goodreads.com/book/show/35187183-your-brain-is-a-time-machine