Time Difference Between Atlanta and Seoul

The time difference between Atlanta and Seoul is 13 hours. When it is 12:00 noon in Atlanta, it is 01:00 in Seoul. Atlanta uses the America/New_York time zone (UTC-4), while Seoul uses Asia/Seoul (UTC+9).

Seoul is 13 hours ahead of Atlanta — 13 hours
Atlanta, United States
18:26:36
Thursday, March 26, 2026
UTC-4 · EDT (DST)
Seoul, South Korea
07:26:36
Friday, March 27, 2026
UTC+9 · KST

Time Zone Details: Atlanta vs Seoul

Detail Atlanta Seoul
Time Zone IDAmerica/New_YorkAsia/Seoul
UTC OffsetUTC-4UTC+9
AbbreviationEDTKST
DST ActiveYes — currently observingNo
CountryUnited StatesSouth Korea
RegionNorth AmericaAsia

Best Time to Schedule a Call

With a 13 hours gap, there is no standard business-hours overlap between Atlanta and Seoul. One party will need to adjust their schedule. Early mornings in Seoul or late evenings in Atlanta tend to be the most practical compromise.

Hour-by-Hour Time Conversion

Use this table to quickly convert any hour from Atlanta time to Seoul time. Rows highlighted in green indicate overlapping business hours in both cities.

Atlanta Seoul
00:00 13:00 Night
01:00 14:00 Night
02:00 15:00 Night
03:00 16:00 Night
04:00 17:00 Night
05:00 18:00 Night
06:00 19:00
07:00 20:00
08:00 21:00
09:00 22:00
10:00 23:00
11:00 00:00 (+1 day)
12:00 01:00 (+1 day)
13:00 02:00 (+1 day)
14:00 03:00 (+1 day)
15:00 04:00 (+1 day)
16:00 05:00 (+1 day)
17:00 06:00 (+1 day)
18:00 07:00 (+1 day)
19:00 08:00 (+1 day)
20:00 09:00 (+1 day)
21:00 10:00 (+1 day)
22:00 11:00 (+1 day) Night
23:00 12:00 (+1 day) Night

Daylight Saving Time (DST) Impact

Atlanta is currently observing daylight saving time, while Seoul is on standard time. When Atlanta switches back to standard time, the difference between these two cities will shift by 1 hour.

Practical Tips for Atlanta–Seoul Scheduling

Compare Atlanta and Seoul with Other Cities

From Atlanta

From Seoul

Frequently Asked Questions

What is the time difference between Atlanta and Seoul?

The time difference is 13 hours. Seoul is 13 hours ahead of Atlanta.

Does the time difference change during the year?

Yes. One of these cities observes DST while the other does not, so the difference shifts by 1 hour when DST begins or ends.

When is the best time to call from Atlanta to Seoul?

There is no ideal window during standard business hours. Consider scheduling at the edges — early morning for the city that is ahead and late afternoon for the city that is behind.

How do I convert Atlanta time to Seoul time?

Add 13 hours to Atlanta time to get Seoul time. Use the hour-by-hour table above for a quick reference.

Related Pages

For sunrise and sunset data, visit TheSunsetTimes.com. For detailed DST schedules, see DaylightSavingTime.info.