What is the time difference between St John's and London?

London is 3 hours 30 minutes ahead of St John's. That figure is current — it changes by an hour when either city starts or ends daylight saving, and the exact dates are listed above.

When is the best time to call London from St John's?

Between 09:00–14:30 in St John's, which is 12:30–18:00 in London. That is the only stretch where both cities are inside a 09:00–18:00 day.

Does St John's observe daylight saving time?

Yes. St John's runs on UTC-3:30 in winter and UTC-2:30 in summer. The next change is on 2026-11-01, when clocks go back by 60 minutes.

Does London observe daylight saving time?

Yes. London runs on UTC+0 in winter and UTC+1 in summer. The next change is on 2026-10-25, when clocks go back by 60 minutes.

If it is midday in St John's, what time is it in London?

It is 15:30 in London, on the same calendar date. That holds for the current offsets; it shifts by an hour around the daylight saving dates listed above.

Which time zones do St John's and London use?

St John's uses America/St_Johns, currently UTC-2:30, and London uses Europe/London, currently UTC+1 (BST). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.

Convert St John's time to London time

London is 3 hours 30 minutes ahead of St John's right now, so midday in St John's lands in the afternoon in London.

Convert a time

From

Date

Time

Converted time

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The converter needs JavaScript to run. Everything below — offsets, daylight saving dates and the hour-by-hour table — is part of the page and works without it.

Hour by hour

Every hour of a day in St John's, and what the clock reads in London at that same moment.

St John's	London
00:00	03:30
01:00	04:30
02:00	05:30
03:00	06:30
04:00	07:30
05:00	08:30
06:00	09:30
07:00	10:30
08:00	11:30
09:00	12:30
10:00	13:30
11:00	14:30
12:00	15:30
13:00	16:30
14:00	17:30
15:00	18:30
16:00	19:30
17:00	20:30
18:00	21:30
19:00	22:30
20:00	23:30
21:00	00:30next day
22:00	01:30next day
23:00	02:30next day

Daylight saving time

Both cities change their clocks, but not necessarily on the same date — which is why the difference between them shifts for a few weeks each year.

St John's

Observes daylight saving time

Standard: UTC-3:30
Daylight: UTC-2:30
Next change: 2026-11-01 −60m

London

Observes daylight saving time

Standard: UTC+0
Daylight: UTC+1
Next change: 2026-10-25 −60m

When you can actually talk

You have 5 hours 30 minutes of shared working time: 09:00–14:30 in St John's, which is 12:30–18:00 in London.

St John's 09:00–14:30London 12:30–18:00

Reference

The underlying data, in case you need to put it in a calendar invitation or a configuration file.

	St John's	London
IANA zone	America/St_Johns	Europe/London
Abbreviation	UTC-2:30	BST
Standard offset	UTC-3:30	UTC+0
Daylight offset	UTC-2:30	UTC+1
Clock changes this year	2	2
Country	Canada	United Kingdom

Example, not the current time. Live times appear once the page loads.

Common questions

What is the time difference between St John's and London?: London is 3 hours 30 minutes ahead of St John's. That figure is current — it changes by an hour when either city starts or ends daylight saving, and the exact dates are listed above.
When is the best time to call London from St John's?: Between 09:00–14:30 in St John's, which is 12:30–18:00 in London. That is the only stretch where both cities are inside a 09:00–18:00 day.
Does St John's observe daylight saving time?: Yes. St John's runs on UTC-3:30 in winter and UTC-2:30 in summer. The next change is on 2026-11-01, when clocks go back by 60 minutes.
Does London observe daylight saving time?: Yes. London runs on UTC+0 in winter and UTC+1 in summer. The next change is on 2026-10-25, when clocks go back by 60 minutes.
If it is midday in St John's, what time is it in London?: It is 15:30 in London, on the same calendar date. That holds for the current offsets; it shifts by an hour around the daylight saving dates listed above.
Which time zones do St John's and London use?: St John's uses America/St_Johns, currently UTC-2:30, and London uses Europe/London, currently UTC+1 (BST). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.