London to Kolonnawa time converter

Kolonnawa is 4 hours 30 minutes ahead of London. When it is 9:00 AM in London, it is 1:30 PM in Kolonnawa.

London BST

Tuesday, October 20, 2026

Kolonnawa IST

Wednesday, October 21, 2026

London
United Kingdom
Tue, Oct 20
BSTUTC+1
Kolonnawa
Sri Lanka
Wed, Oct 21
ISTUTC+5:30+4h 30m
Finding your time zone…
Shared working hours (9:00–18:00)

London to Kolonnawa conversion table

Every hour of today in London and the matching time in Kolonnawa. Light rows are typical working hours (9:00–18:00).

LondonKolonnawa
12:00 AM4:30 AM
1:00 AM5:30 AM
2:00 AM6:30 AM
3:00 AM7:30 AM
4:00 AM8:30 AM
5:00 AM9:30 AM
6:00 AM10:30 AM
7:00 AM11:30 AM
8:00 AM12:30 PM
9:00 AM1:30 PM
10:00 AM2:30 PM
11:00 AM3:30 PM
12:00 PM4:30 PM
1:00 PM5:30 PM
2:00 PM6:30 PM
3:00 PM7:30 PM
4:00 PM8:30 PM
5:00 PM9:30 PM
6:00 PM10:30 PM
7:00 PM11:30 PM
8:00 PM12:30 AM+1 day
9:00 PM1:30 AM+1 day
10:00 PM2:30 AM+1 day
11:00 PM3:30 AM+1 day

Best time to call or meet

Both sides are at work from 9:00 AM – 1:30 PM in London (1:30 PM – 6:00 PM in Kolonnawa).

Daylight saving time and the difference

The difference changes during the year because London and Kolonnawa switch clocks on different dates:

  • Oct 20, 2026 – Oct 25, 2026: +4h 30m
  • Oct 25, 2026 – Mar 28, 2027: +5h 30m
  • Mar 28, 2027 – Oct 20, 2027: +4h 30m

Distance

London and Kolonnawa are 8,714 km (5,415 miles) apart in a straight line.

More conversions

Kolonnawa to LondonLondon to New YorkLondon to Los AngelesLondon to ChicagoLondon to TorontoLondon to São PauloLondon to ParisLondon to BerlinLondon to MoscowLondon to DubaiLondon to New DelhiLondon to BangkokLondon to Singapore
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Questions and answers

What is the time difference between London and Kolonnawa?

Kolonnawa is 4 hours 30 minutes ahead of London.

What time is it in Kolonnawa when it is 9 AM in London?

When it is 9:00 AM in London, it is 1:30 PM in Kolonnawa.

When is the best time to call Kolonnawa from London?

Both sides are at work from 9:00 AM – 1:30 PM in London (1:30 PM – 6:00 PM in Kolonnawa).

Does the time difference between London and Kolonnawa change?

Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.