BST to UTC Time Converter

Convert British Summer Time (BST) to Coordinated Universal Time (UTC). Both time zones are shown live below; current offset between them is 1 hour behind.

London · British Summer Time
02:39:58
Monday, May 11, 2026
GMT+1 · UTC+01:00
UTC · Coordinated Universal Time
01:39:58
Monday, May 11, 2026
UTC · UTC+00:00

Convert a specific time

From: BST (London)
To: UTC (UTC)
--:--

Daylight Saving status right now

BST (British Summer Time)
Observes DST
Yes
In DST right now
Yes
Next fall back
2026-10-25
Offset shift
UTC+01:00 → UTC+00:00
UTC (Coordinated Universal Time)
Observes DST
No

Heads up: BST observes DST while UTC does not. The 1-hour difference shown above will shift by one hour when BST starts or ends DST.

When can BST and UTC meet?

00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
BST
UTC
Both zones in working hours (9am-5pm)
One zone working
Off-hours
Columns are hours of the day in London (BST). Each row shows the local working-hours state in that zone for the same moment in time.
7 hours of overlap during standard 9am-5pm working hours.
Best meeting window: 10:00–16:00 BST (09:00–15:00 UTC).

Hour-by-hour BST to UTC conversion table

BST time (London)UTC time (UTC)Status
00:00 Mon23:00 SunOff-hours both sides
01:00 Mon00:00 MonOff-hours both sides
02:00 Mon01:00 MonOff-hours both sides
03:00 Mon02:00 MonOff-hours both sides
04:00 Mon03:00 MonOff-hours both sides
05:00 Mon04:00 MonOff-hours both sides
06:00 Mon05:00 MonOff-hours both sides
07:00 Mon06:00 MonOff-hours both sides
08:00 Mon07:00 MonOff-hours both sides
09:00 Mon08:00 MonBST working
10:00 Mon09:00 MonBoth at work
11:00 Mon10:00 MonBoth at work
12:00 Mon11:00 MonBoth at work
13:00 Mon12:00 MonBoth at work
14:00 Mon13:00 MonBoth at work
15:00 Mon14:00 MonBoth at work
16:00 Mon15:00 MonBoth at work
17:00 Mon16:00 MonUTC working
18:00 Mon17:00 MonOff-hours both sides
19:00 Mon18:00 MonOff-hours both sides
20:00 Mon19:00 MonOff-hours both sides
21:00 Mon20:00 MonOff-hours both sides
22:00 Mon21:00 MonOff-hours both sides
23:00 Mon22:00 MonOff-hours both sides

Times computed for today in each zone using the IANA time zone database. The conversion accounts for daylight saving time wherever applicable.

About these time zones

British Summer Time (BST)
IANA identifier
Europe/London
Current UTC offset
UTC+01:00
Current abbreviation
GMT+1
Major cities in this zone
LondonManchesterEdinburghBirmingham
Coordinated Universal Time (UTC)
IANA identifier
UTC
Current UTC offset
UTC+00:00
Current abbreviation
UTC
Major cities in this zone
UTC

Sun today in London and UTC

London
Sunrise
05:16
Sunset
20:39
Solar noon
12:58
Daylight
15h 23m

Related converters

UTC to BST (reverse)BST to ESTBST to PSTBST to GMTBST to CETBST to ISTEST to UTCPST to UTCGMT to UTCCET to UTCIST to UTC
Looking for local time? See time in London or time in UTC.

Frequently asked questions

What is the time difference between BST and UTC right now?+
UTC (Coordinated Universal Time) is currently 1 hour behind BST (British Summer Time). The exact difference can change when one or both zones transition into or out of daylight saving time.
Does BST or UTC observe daylight saving time?+
BST: observes daylight saving time. UTC: does not observe daylight saving time.
When is the best time to schedule a meeting between BST and UTC?+
The strongest overlap is 10:00–16:00 BST (09:00–15:00 UTC), giving 7 hours when both sides are within standard 9am-5pm working hours.
What time is it in UTC when it is 12:00 noon in London?+
When it is 12:00 Mon in London (BST), it is 11:00 Mon in UTC (UTC).
Which IANA time zone identifiers are used for BST and UTC?+
BST maps to "Europe/London" in the IANA database. UTC maps to "UTC". These identifiers are what most software libraries use to convert times accurately, including DST handling.
Is London ahead of or behind UTC?+
Whether London (BST) is ahead of or behind UTC (UTC) depends on the current UTC offsets. Right now UTC is 1 hour behind BST. The live converter and side-by-side clocks above always reflect the current direction.
What are the current UTC offsets for BST and UTC?+
BST is UTC+01:00 (GMT+1) and UTC is UTC+00:00 (UTC). Both offsets shift by one hour when the corresponding region enters or exits daylight saving time, so the live values on this page are the source of truth.
Can I schedule meetings during business hours for both BST and UTC?+
Yes. There are 7 hours of overlap during standard 9am-5pm working hours, with the strongest window at 10:00–16:00 BST.