There is no time difference between Osaka and Seoul. Both cities use UTC+9. Osaka uses Japan Standard Time (JST) while Seoul uses Korea Standard Time (KST). When it's 12:00 PM in Osaka, it's also 12:00 PM in Seoul.
Neither Japan nor South Korea observes daylight saving time, so the cities 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.
Osaka and Seoul are just a 2-hour flight apart. There's significant business travel between Japan and South Korea, with strong ties in tech, entertainment, and manufacturing.