London to Santo Tomé time converter

Santo Tomé is 4 hours behind London. When it is 9:00 AM in London, it is 5:00 AM in Santo Tomé.

London BST

Wednesday, October 21, 2026

Santo Tomé ART

Tuesday, October 20, 2026

London
United Kingdom
Wed, Oct 21
BSTUTC+1
Santo Tomé
Argentina
Tue, Oct 20
ARTUTC-3-4h
Finding your time zone…
Shared working hours (9:00–18:00)

London to Santo Tomé conversion table

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

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

Best time to call or meet

Both sides are at work from 1:00 PM – 6:00 PM in London (9:00 AM – 2:00 PM in Santo Tomé).

Daylight saving time and the difference

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

  • Oct 21, 2026 – Oct 25, 2026: -4h
  • Oct 25, 2026 – Mar 28, 2027: -3h
  • Mar 28, 2027 – Oct 21, 2027: -4h

Distance

London and Santo Tomé are 10,974 km (6,819 miles) apart in a straight line.

More conversions

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New York to Santo ToméLos Angeles to Santo ToméChicago to Santo ToméToronto to Santo ToméSão Paulo to Santo ToméParis to Santo ToméBerlin to Santo ToméMoscow to Santo ToméDubai to Santo ToméNew Delhi to Santo ToméBangkok to Santo ToméSingapore to Santo Tomé

Questions and answers

What is the time difference between London and Santo Tomé?

Santo Tomé is 4 hours behind London.

What time is it in Santo Tomé when it is 9 AM in London?

When it is 9:00 AM in London, it is 5:00 AM in Santo Tomé.

When is the best time to call Santo Tomé from London?

Both sides are at work from 1:00 PM – 6:00 PM in London (9:00 AM – 2:00 PM in Santo Tomé).

Does the time difference between London and Santo Tomé change?

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