Sri Lanka Standard time · Sri Lanka

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Sri Lanka keeps one time zone for the whole island, Sri Lanka Standard Time, SLST, UTC+5:30. It is the same time as India. Its clocks do not change. The clock above shows it live, with seconds.

Updated · Time zone data 2026e · Sources

Time zone in Sri Lanka

Colombo, Kandy, Galle and Jaffna all keep the same zone, fixed by regulation.

Standard time
SLST, UTC+5:30
Daylight saving time
Not observed
Main cities
Colombo, Dehiwala-Mount Lavinia, Maharagama, Jaffna

How many hours ahead or behind Sri Lanka

On 7 October 2026, London is 4 hours 30 minutes behind Sri Lanka.

CityDifference from Sri Lanka
London4 hours 30 minutes behind
Toronto9 hours 30 minutes behind
New York9 hours 30 minutes behind
Dubai1 hour 30 minutes behind
Riyadh2 hours 30 minutes behind
Qatar2 hours 30 minutes behind
Singapore2 hours 30 minutes ahead
Melbourne5 hours 30 minutes ahead
Your time zoneDetected after this page loads

Convert a time between any two placesDaylight saving dates around the world

How Sri Lanka keeps its time

The official time
SLSTfixed by regulation, the same all year
A government regulation fixes Sri Lanka Standard Time at one gap to Coordinated Universal Time. There is no seasonal change. The regulation also makes it the time meant in any contract. The Time and Frequency Laboratory of the Measurement Units, Standards and Services Department keeps it and sends it out.
Sources Gazette of Sri Lanka, Standard time regulation, 2011, Measurement Units, Standards and Services Department, Time and Frequency Laboratory
Ten years ahead of India
10years on a different time from India
During the country's worst power crisis, Sri Lanka moved its clocks forward by an hour. Dark mornings brought an outcry. The clocks went back half an hour the same year. The island then ran half an hour ahead of India for about a decade. After that, it returned to India's time.
Sources Down To Earth, Time travel, Gulf News (Reuters), Time for change when Sri Lanka turns back the clocks
Two clocks on one island
30 minbetween Colombo and the areas the Tigers held, for that decade
The Tamil Tigers never accepted the change. In the areas they controlled, they kept the old time, the same as India's. Throughout that decade, clocks in those areas ran half an hour behind Colombo.
Source Gulf News (Reuters), Time for change when Sri Lanka turns back the clocks
Back on India's time
0minutes between Colombo and New Delhi
Parents had been complaining that children left for school in the dark. Then the clocks were set back to India's time. Buddhist clergy and astrologers welcomed the change, because they had kept working to the old clock all along.
Sources Down To Earth, Time travel, Gulf News (Reuters), Time for change when Sri Lanka turns back the clocks

Questions about time in Sri Lanka

What time zone is Sri Lanka in?

Sri Lanka keeps one time zone, Sri Lanka Standard Time, SLST, UTC+5:30, across the whole island. It is set by regulation. The Time and Frequency Laboratory of the Measurement Units, Standards and Services Department keeps it. The clocks do not change for summer.

Is Sri Lanka on the same time as India?

Yes. Colombo and New Delhi show the same time all year. Sri Lanka spent about ten years on a different time. Its clock has matched India's since it was set back half an hour.

Does Sri Lanka have daylight saving time?

No. Sri Lanka stays on SLST, UTC+5:30 all year. The jump forward during the power crisis was a change of standard time, not a summer clock. It was undone ten years later. The gap with Europe and North America still moves twice a year, because they change their clocks.

What is the time difference between Sri Lanka and the UK?

London is 5 hours 30 minutes behind Sri Lanka in the British winter. The gap is one hour less in summer, when the UK moves its clocks forward. A call at the start of the London working day reaches Colombo in the early afternoon, local time.

What is the time difference between Sri Lanka and the Middle East?

Dubai is 1 hour 30 minutes behind Sri Lanka all year. Riyadh is 2 hours 30 minutes behind Sri Lanka, also all year round. None of the three moves its clocks for summer.

Time zone names for developers
IANA zoneStandard timeDaylight saving time
Asia/ColomboSLST, UTC+5:30No