Koothanallur to London time converter

London is 4 hours 30 minutes behind Koothanallur. When it is 9:00 AM in Koothanallur, it is 4:30 AM in London.

Koothanallur IST

Tuesday, October 20, 2026

London BST

Tuesday, October 20, 2026

Tamil Nadu, India
Tue, Oct 20
ISTUTC+5:30
United Kingdom
Tue, Oct 20
BSTUTC+1-4h 30m
Finding your time zone…

5:54 AM in Koothanallur, Tuesday, October 20, 2026

Shared working hours (9:00–18:00)

Koothanallur to London conversion table

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

KoothanallurLondon
12:00 AM7:30 PM−1 day
1:00 AM8:30 PM−1 day
2:00 AM9:30 PM−1 day
3:00 AM10:30 PM−1 day
4:00 AM11:30 PM−1 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

Best time to call or meet

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

Daylight saving time and the difference

The difference changes during the year because Koothanallur and London 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

Koothanallur and London are 8,361 km (5,195 miles) apart in a straight line.

More conversions

Questions and answers

What is the time difference between Koothanallur and London?

London is 4 hours 30 minutes behind Koothanallur.

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

When it is 9:00 AM in Koothanallur, it is 4:30 AM in London.

When is the best time to call London from Koothanallur?

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

Does the time difference between Koothanallur and London change?

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