Time Difference Between Seoul and Sofia

The time difference between Seoul and Sofia is 6 hours. When it is 12:00 noon in Seoul, it is 06:00 in Sofia. Seoul uses the Asia/Seoul time zone (UTC+9), while Sofia uses Europe/Sofia (UTC+3).

Sofia is 6 hours behind Seoul — 6 hours
Seoul, South Korea
08:36:01
Monday, May 11, 2026
UTC+9 · KST
Sofia, Bulgaria
02:36:01
Monday, May 11, 2026
UTC+3 · EEST (DST)

Time Zone Details: Seoul vs Sofia

Detail Seoul Sofia
Time Zone IDAsia/SeoulEurope/Sofia
UTC OffsetUTC+9UTC+3
AbbreviationKSTEEST
DST ActiveNoYes — currently observing
CountrySouth KoreaBulgaria
RegionAsiaEurope

Best Time to Schedule a Call

There are 2 overlapping business hours between Seoul and Sofia (assuming 9:00–17:00 in each city). The ideal window for calls and meetings is:

15:00–17:00 in Seoul  =  09:00–11:00 in Sofia

Hour-by-Hour Time Conversion

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

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

Daylight Saving Time (DST) Impact

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

Practical Tips for Seoul–Sofia Scheduling

Compare Seoul and Sofia with Other Cities

From Seoul

From Sofia

Frequently Asked Questions

What is the time difference between Seoul and Sofia?

The time difference is 6 hours. Sofia is 6 hours behind Seoul.

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 Seoul to Sofia?

The best window is between 15:00 and 17:00 Seoul time, which corresponds to 09:00–11:00 in Sofia. Both sides fall within normal business hours.

How do I convert Seoul time to Sofia time?

Subtract 6 hours from Seoul time to get Sofia 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.