UTC to BST to London Time Converter
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Quick answers
Selected conversion
12:00 pm12:00 UTC (UTC+0), Oct 18, 2026 = 1:00 pm13:00 BST (UTC+1), Oct 18, 2026 = 1:00 pm13:00 BST (UTC+1), Oct 18, 2026
UTC is 1 hour behind BST. UTC is 1 hour behind London.
How the time difference changes
UTC to BST
For most of the year, UTC is 1 hour behind BST. From Oct 25, 2026 to Mar 28, 2027, UTC and GMT have the same time.
For most of the year, working hours of 9:00 am to 6:00 pm in UTC correspond to 10:00 am to 7:00 pm in BST. At other times of the year, working hours of 9:00 am to 6:00 pm in UTC correspond to 9:00 am to 6:00 pm in GMT.For most of the year, working hours of 09:00 to 18:00 in UTC correspond to 10:00 to 19:00 in BST. At other times of the year, working hours of 09:00 to 18:00 in UTC correspond to 09:00 to 18:00 in GMT.
UTC to London
For most of the year, UTC is 1 hour behind London. From Oct 25, 2026 to Mar 28, 2027, UTC and London have the same time.
For most of the year, working hours of 9:00 am to 6:00 pm in UTC correspond to 10:00 am to 7:00 pm in London. At other times of the year, working hours of 9:00 am to 6:00 pm in UTC correspond to 9:00 am to 6:00 pm in London.For most of the year, working hours of 09:00 to 18:00 in UTC correspond to 10:00 to 19:00 in London. At other times of the year, working hours of 09:00 to 18:00 in UTC correspond to 09:00 to 18:00 in London.
Compare UTC time with BST and London time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Coordinated Universal Time is 1 hour behind British Summer Time. Coordinated Universal Time is 1 hour behind BST (British Summer Time).
12:00 pm12:00 in UTC is 1:00 pm13:00 in BST and is 1:00 pm13:00 in London, United Kingdom
UTC to BST call time
Best time for a conference call or a meeting is between 9am-5pm09:00-17:00 in UTC which corresponds to 10am-6pm10:00-18:00 in BST
UTC to London call time
Best time for a conference call or a meeting is between 9am-5pm09:00-17:00 in UTC which corresponds to 10am-6pm10:00-18:00 in London
12:00 pm12:00 Coordinated Universal Time (UTC). Offset UTC 0:00 hours
1:00 pm13:00 British Summer Time (BST). Offset UTC +1:00 hour
1:00 pm13:00 BST (British Summer Time) (London, United Kingdom). Offset UTC +1:00 hour
12:00 pm12:00 UTC / 1:00 pm13:00 BST / 1:00 pm13:00 London, United Kingdom
Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.
| UTC | BST | London, United Kingdom |
|---|---|---|
| 1:00am | 1:00am | |
| 2:00am | 2:00am | |
| 3:00am | 3:00am | |
| 4:00am | 4:00am | |
| 5:00am | 5:00am | |
| 6:00am | 6:00am | |
| 7:00am | 7:00am | |
| 8:00am | 8:00am | |
| 9:00am | 9:00am | |
| 10:00am | 10:00am | |
| 11:00am | 11:00am | |
| 12:00pm | 12:00pm | |
| 1:00pm | 1:00pm | |
| 2:00pm | 2:00pm | |
| 3:00pm | 3:00pm | |
| 4:00pm | 4:00pm | |
| 5:00pm | 5:00pm | |
| 6:00pm | 6:00pm | |
| 7:00pm | 7:00pm | |
| 8:00pm | 8:00pm | |
| 9:00pm | 9:00pm | |
| 10:00pm | 10:00pm | |
| 11:00pm | 11:00pm | |
| 12:00am next day | 12:00am next day | |
| 01:00 | 01:00 | |
| 02:00 | 02:00 | |
| 03:00 | 03:00 | |
| 04:00 | 04:00 | |
| 05:00 | 05:00 | |
| 06:00 | 06:00 | |
| 07:00 | 07:00 | |
| 08:00 | 08:00 | |
| 09:00 | 09:00 | |
| 10:00 | 10:00 | |
| 11:00 | 11:00 | |
| 12:00 | 12:00 | |
| 13:00 | 13:00 | |
| 14:00 | 14:00 | |
| 15:00 | 15:00 | |
| 16:00 | 16:00 | |
| 17:00 | 17:00 | |
| 18:00 | 18:00 | |
| 19:00 | 19:00 | |
| 20:00 | 20:00 | |
| 21:00 | 21:00 | |
| 22:00 | 22:00 | |
| 23:00 | 23:00 | |
| 00:00 next day | 00:00 next day |
Coordinated Universal Time
Offset: UTC is the same as Greenwich Mean Time (GMT).
Countries using this time zone: Antarctica, Burkina Faso, Faroe Islands, Gambia, Ghana, Greenland, Guernsey, Guinea, Guinea-Bissau, Iceland, Ireland, Isle of Man, Ivory Coast, Jersey, Liberia, Mali, Mauritania, Morocco, Portugal, Saint Helena, São Tomé and Príncipe, Senegal, Sierra Leone, Spain, Togo, United Kingdom, Western Sahara
Principal Cities: The largest city in the UTC time zone is London in the United Kingdom, with about 8.962 million people. Other major cities in this time zone include Abidjan, Bamako, Casablanca, Dakar.
Coordinated Universal Time (UTC) is the world time standard that regulates clocks and time. It is the successor to Greenwich Mean Time (GMT). For casual use, UTC is the same as GMT, but UTC is the standard the scientific community uses.
UTC has been the time standard commonly used across the world since 1972. It is used in many technical fields, such as aviation and meteorology, and to synchronize time across internet networks.
Today some of the lighter areas are on UTC+1 (British Summer Time, Irish Standard Time, WEST).
UTC representations, usage and related time zones
- Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
- +00 - basic short
- +0000 - basic
- +00:00 - extended
- +0000 - sign character (+) followed by a four digit time providing hours (00) and minutes (00) of the offset. Indicates the zero UTC/GMT offset.
- Zulu - Military abbreviation for UTC
- Z - short form of 'Zulu'
- Etc/UCT
- Etc/UTC
- Etc/Universal
- Etc/Zulu
- UCT
- UTC
- Universal
- Zulu
- EGST - Eastern Greenland Summer Time
- GMT - Greenwich Mean Time
- WET - Western European Time
- AZOST - Azores Summer Time
- UTC - Coordinated Universal Time
- WT - Western Sahara Standard Time
- Z - Zulu Time Zone
British Summer Time
Offset: BST is 1 hour ahead of Greenwich Mean Time (GMT).
Countries using this time zone: Guernsey, Isle of Man, Jersey, United Kingdom
Principal Cities: The largest city in the BST time zone is London in the United Kingdom, with about 8.962 million people. Other major cities in this time zone include Birmingham, Glasgow, Manchester, Sheffield.
Current time in the United Kingdom: UK time now
Today all shaded areas are on BST.
Daylight Saving: British Summer Time (BST) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Greenwich Mean Time (GMT).
Start: British Summer Time (BST) started on Sunday, March 29, 2026 at 1:00 am01:00 local time and clocks were set one hour forward to Sunday, March 29, 2026, 2:00 am02:00. Daylight saving starts annually on the last Sunday of March.
End: British Summer Time (BST) ends on Sunday, October 25, 2026 at 2:00 am02:00 local time and clocks are set one hour back to Sunday, October 25, 2026, 1:00 am01:00 local standard time instead. Daylight saving ends annually on the last Sunday of October.
See United Kingdom daylight saving time and upcoming clock changes worldwide.
BST representations, usage and related time zones
- +01 - basic short
- +0100 - basic
- +01:00 - extended
- +0100 - sign character (+) followed by a four digit time providing hours (01) and minutes (00) of the offset. Indicates an offset of one hour to the east of the zero meridian.
- Alpha - Military abbreviation for BST
- A - short form of 'Alpha'
- Europe/Belfast
- Europe/Guernsey
- Europe/Isle_of_Man
- Europe/Jersey
- Europe/London
- GB
- GB-Eire
- British Summer Time - UTC +1
- Bangladesh Standard Time - UTC +6
- Bougainville Standard Time - UTC +11
- BST - British Summer Time
- CET - Central European Time
- IST - Irish Standard Time
- WEST - Western European Summer Time
- A - Alpha Time Zone
- CET - Central European Time
- MEZ - Mitteleuropäische Zeit
- WAT - West Africa Time
- WST - Western Sahara Summer Time
- BMT - Biel Mean Time
London Time Zone and Facts
Time Zone
GMT – Greenwich Mean Time, UTC+0 (standard time)