Tokyo is always 1 hour ahead of Hong Kong. When it's 9:00 AM in Hong Kong, it's 10:00 AM in Tokyo. Neither city observes DST, so this difference is constant year-round.
Hong Kong uses HKT (UTC+8) and Tokyo uses JST (UTC+9), maintaining a consistent 1-hour gap.
Business hours align perfectly! 9:00 AM - 6:00 PM Hong Kong corresponds to 10:00 AM - 7:00 PM Tokyo. Almost complete working day overlap.
Hong Kong and Tokyo are major Asian financial centers with extensive ties. Cathay Pacific, ANA, and JAL operate numerous daily flights on this busy route.