Sri Lanka Time Zone Guide
Colombo is Sri Lanka's commercial capital and largest city, even though the official capital is Sri Jayawardenepura Kotte. The live clock at the top of this page is based on this city.
Sri Lanka uses a single time zone nationwide, based on Colombo; daylight saving time is not observed here.
You can see the current time difference from Istanbul in the live clock above, which is useful when planning an international call or meeting.