James M. Cox Dayton International Airport is 13 hours behind Gimpo International Airport.

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Current time

Gimpo International Airport   5:48 AM on Monday, Jun 30, 2025

James M. Cox Dayton International Airport   4:48 PM on Sunday, Jun 29, 2025

Map from GMP to DAY

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Meeting planner for Gimpo International Airport and James M. Cox Dayton International Airport

Unfortunately, there aren't any times that overlap between your normal working hours and theirs. The best we can do with the meeting planner is to expand the range to cover from 7:00 AM to 7:00 PM your time (GMP).

To schedule a conference call or plan a meeting at the best time for both parties, you should try between 7:00 AM and 8:00 AM your time in GMP. That will end up being between 6:00 PM and 7:00 PM in DAY. The chart below shows overlapping times.

Schedule a phone call from GMP to DAY

If you are at GMP and you want to call a friend at DAY, you can try calling them between 8:00 PM and 12:00 PM your time. This will be between 7AM - 11PM their time, since James M. Cox Dayton International Airport is 13 hours behind Gimpo International Airport.

If you're available any time, but you want to reach someone in DAY at work, you may want to try between 10:00 PM and 6:00 AM your time. This is the best time to reach them from 9AM - 5PM during normal working hours.

Time difference

Travelmath provides an online time zone converter for places all over the world. You can enter airports, cities, states, countries, or zip codes to find the time difference between any two locations. The calculator will automatically adjust for daylight saving time (DST) in the summer. You can use it as a meeting planner or a scheduler to find the best time to make international phone calls. World time zones have a positive or negative offset computed from Coordinated Universal Time (UTC), or Greenwich Mean Time (GMT). UTC has uniform seconds defined by International Atomic Time (TAI), with leap seconds announced at irregular intervals to compensate for the Earth's slowing rotation. The tz database or zoneinfo database uses the closest city, rather than the more common Eastern, Central, Mountain or Pacific time zones in the United States. Countries often change their daylight saving rules, so please help us stay current by letting us know if you find any pages that need updates.