"Arrive at 3pm"
"Wait, is that 3pm your time, my time or the destination time?"
"Destination time, it's when the Wizard bar opens at hub-city"
"When is that for me?"
"Look it up in your book of totally-not-timezone details, I'm 3 hours behind, you're three hours ahead"
"So I need to leave at 6pm local, and you leave at 12pm your time"
"That's right!"