Time Difference Between London and Colombo

The time difference between London and Colombo is 5 hours and 30 minutes. When it is 12:00 noon in London, it is 17:30 in Colombo. London uses the Europe/London time zone (UTC+0), while Colombo uses Asia/Colombo (UTC+5:30).

Colombo is 5 hours and 30 minutes ahead of London — 5 hours and 30 minutes
London, United Kingdom
20:56:34
Thursday, March 26, 2026
UTC+0 · GMT
Colombo, Sri Lanka
02:26:34
Friday, March 27, 2026
UTC+5:30 · +0530

Time Zone Details: London vs Colombo

Detail London Colombo
Time Zone IDEurope/LondonAsia/Colombo
UTC OffsetUTC+0UTC+5:30
AbbreviationGMT+0530
DST ActiveNoNo
CountryUnited KingdomSri Lanka
RegionEuropeAsia

Best Time to Schedule a Call

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

09:00–11:30 in London  =  14:30–17:00 in Colombo

Hour-by-Hour Time Conversion

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

London Colombo
00:00 05:30 Night
01:00 06:30 Night
02:00 07:30 Night
03:00 08:30 Night
04:00 09:30 Night
05:00 10:30 Night
06:00 11:30
07:00 12:30
08:00 13:30
09:00 14:30 Overlap
10:00 15:30 Overlap
11:00 16:30 Overlap
12:00 17:30
13:00 18:30
14:00 19:30
15:00 20:30
16:00 21:30
17:00 22:30
18:00 23:30
19:00 00:30 (+1 day)
20:00 01:30 (+1 day)
21:00 02:30 (+1 day)
22:00 03:30 (+1 day) Night
23:00 04:30 (+1 day) Night

Daylight Saving Time (DST) Impact

Neither London 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 London–Colombo Scheduling

Compare London and Colombo with Other Cities

From London

From Colombo

Frequently Asked Questions

What is the time difference between London and Colombo?

The time difference is 5 hours and 30 minutes. Colombo is 5 hours and 30 minutes ahead of London.

Does the time difference change during the year?

It can. If either London 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 London to Colombo?

The best window is between 09:00 and 11:30 London time, which corresponds to 14:30–17:00 in Colombo. Both sides fall within normal business hours.

How do I convert London time to Colombo time?

Add 5 hours and 30 minutes to London time to get Colombo 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.