Worst-behaved travelers, strange sea-level changes, postmark problems: Catch up on the day’s stories

By Daniel Wine, CNN 👋 Welcome to 5 Things PM! Did you know it takes 26 hours to ring in the New Year across 39 time zones all around the world? It’s already 2026 in China, India and Australia. See how people are celebrating. Here’s what else you might have missed during your busy day.