There is no time difference between Busan and Tokyo. Both cities use UTC+9. Busan uses Korea Standard Time (KST) and Tokyo uses Japan Standard Time (JST). When it's 9:00 AM in Busan, it's also 9:00 AM in Tokyo.
Neither city observes daylight saving time, so they remain synchronized year-round.
Any time works! Since both cities share the same timezone, you can schedule calls during standard business hours (9:00 AM - 6:00 PM) without any time conversion needed.
Busan and Tokyo are connected by direct flights taking approximately 2 hours. Both are major economic centers with significant business connections between South Korea and Japan.