Colombo to London Time

Colombo is 4 hours 30 minutes ahead of London.

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Colombo time to London time

Colombo is 4 hours 30 minutes ahead of London. When it is 9:00 AM in Colombo, Sri Lanka, it is 4:30 AM in London, UK. Standard 9 AM to 6 PM working hours overlap for 4 hours 30 minutes: 1:30 PM to 6:00 PM in Colombo (9:00 AM to 1:30 PM in London).

Time difference

4 hours 30 minutes (Colombo ahead). Colombo uses GMT+5:30; London uses BST.

Working-hours overlap

4 hours 30 minutes of shared 9 AM to 6 PM hours.

Daylight saving

Next change: Sun, Oct 25, 2026 (London).

Colombo to London time conversion table

Times for Fri, Oct 9, 2026. Highlighted rows fall within 9 AM to 6 PM in both cities. Drag the live converter above for any other date.
Colombo (GMT+5:30)London (BST)
12:00 AM7:30 PM (previous day)
1:00 AM8:30 PM (previous day)
2:00 AM9:30 PM (previous day)
3:00 AM10:30 PM (previous day)
4:00 AM11:30 PM (previous day)
5:00 AM12:30 AM
6:00 AM1:30 AM
7:00 AM2:30 AM
8:00 AM3:30 AM
9:00 AM4:30 AM
10:00 AM5:30 AM
11:00 AM6:30 AM
12:00 PM7:30 AM
1:00 PM8:30 AM
2:00 PM9:30 AM
3:00 PM10:30 AM
4:00 PM11:30 AM
5:00 PM12:30 PM
6:00 PM1:30 PM
7:00 PM2:30 PM
8:00 PM3:30 PM
9:00 PM4:30 PM
10:00 PM5:30 PM
11:00 PM6:30 PM

Daylight saving time

On Sun, Oct 25, 2026, London switches from BST to GMT, so the difference becomes 5 hours 30 minutes (Colombo ahead). On Sun, Mar 28, 2027, London switches from GMT to BST, so the difference becomes 4 hours 30 minutes (Colombo ahead).

How to use the meeting time converter

  1. Select either city name and search by city, time zone, abbreviation, or UTC offset.
  2. Drag the horizontal timeline, or use the arrow and Page Up/Page Down keys, to choose a moment.
  3. Read the matching time and date for both locations and use the color bands to compare working hours.

Frequently asked questions

What is the time difference between Colombo and London?

Colombo is 4 hours 30 minutes ahead of London. Colombo currently uses GMT+5:30 and London uses BST.

When it is 9 AM in Colombo, what time is it in London?

It is 4:30 AM in London.

What is the best time for a meeting between Colombo and London?

Standard 9 AM to 6 PM working hours overlap for 4 hours 30 minutes: 1:30 PM to 6:00 PM in Colombo (9:00 AM to 1:30 PM in London).

Does daylight saving time affect Colombo and London?

On Sun, Oct 25, 2026, London switches from BST to GMT, so the difference becomes 5 hours 30 minutes (Colombo ahead). On Sun, Mar 28, 2027, London switches from GMT to BST, so the difference becomes 4 hours 30 minutes (Colombo ahead).

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