Prague is 7 hours behind Seoul
Best overlap: 3:00 PM to 6:00 PM in Seoul is 8:00 AM to 11:00 AM in Prague.
Your window to reach both cities is 3:00 PM to 6:00 PM in Seoul, which converts to 8:00 AM to 11:00 AM in Prague. Roughly 3 hours of shared hours means scheduling takes a little care — 3:00 PM in Seoul / 8:00 AM in Prague is a safe default. One seasonal catch: Prague springs forward and falls back, but Seoul doesn't, so the gap changes by an hour for several months of the year.