Mexico City — CST (US Central), similar to Chicago
Mexico City runs on Central Standard Time (CST, UTC-6) — the same offset as Chicago most of the year. Mexico ended nationwide DST in 2022 (except border cities). Business hours 9 AM - 6 PM with an extended lunch (2-4 PM) traditionally, though modern corporate life increasingly skips this. BMV (Mexican Stock Exchange) trading runs 8:30 AM - 3 PM CST.