Time Difference Between Seoul and Colombo

The time difference between Seoul and Colombo is 3 hours and 30 minutes. When it is 12:00 noon in Seoul, it is 08:30 in Colombo. Seoul uses the Asia/Seoul time zone (UTC+9), while Colombo uses Asia/Colombo (UTC+5:30).

Time Zone Details: Seoul vs Colombo

Best Time to Schedule a Call

There are 4 overlapping business hours between Seoul and Colombo (assuming 9:00–17:00 in each city). The ideal window for calls and meetings is:

Hour-by-Hour Time Conversion

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

Daylight Saving Time (DST) Impact

Neither Seoul nor Colombo is currently observing daylight saving time. If either city observes DST, the time difference will change by 1 hour when DST begins or ends. Always double-check before scheduling across these time zones during March–April and October–November.

Practical Tips for Seoul–Colombo Scheduling

• Video calls: Target the 4-hour overlap window listed above. Both teams will be within normal working hours.
• Email and async work: Send messages at the end of your workday so they arrive at the start of theirs. With a 3 hours and 30 minutes offset, replies will often land by your next morning.
• Flight arrivals: A direct flight between these cities can cross 3 time zones. Factor in jet lag recovery — most travelers need roughly one day per hour of time difference to fully adjust.
• Use UTC as a neutral reference when coordinating with three or more time zones at once.

Compare Seoul and Colombo with Other Cities

From Seoul

From Colombo

Frequently Asked Questions

What is the time difference between Seoul and Colombo?

The time difference is 3 hours and 30 minutes. Colombo is 3 hours and 30 minutes behind Seoul.

Does the time difference change during the year?

It can. If either Seoul or Colombo observes daylight saving time, the gap will shift by 1 hour during the transition periods (typically March–April and October–November).

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

The best window is between 12:30 and 17:00 Seoul time, which corresponds to 09:00–13:30 in Colombo. Both sides fall within normal business hours.

How do I convert Seoul time to Colombo time?

Subtract 3 hours and 30 minutes from Seoul time to get Colombo time. Use the hour-by-hour table above for a quick reference.

Related Pages

• Current time in Seoul — live clock, time zone details, DST status
• Current time in Colombo — live clock, time zone details, DST status
• Time Difference Calculator — compare any two cities
• UTC+9 countries and cities
• UTC+5:30 countries and cities
• Current UTC Time
• All World Time Zones
• What Is a Time Zone?

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