Convert British Summer Time to Coordinated Universal Time instantly. Scroll the timeline to check any hour of the day.
British Summer TimeBST
10:09PMJul 31
Coordinated Universal TimeUTC
9:09PMJul 31
Search any city, build a custom world clock, and plan across more time zones and options in the FlutterTime app. Free.
How the BST to UTC time difference works
UTC is 1 hour behind BST. British Summer Time (BST) is the spring-to-autumn daylight time of the United Kingdom, fixed at one hour ahead of GMT.
Coordinated Universal Time (UTC) is the global time standard the world sets its clocks by.
For example, 9:00 AM BST is 8:00 AM UTC.
Scroll the timeline above to convert any moment, or use the chart below for a quick reference.
Time difference
1 hour
Daylight saving
Neither
BST offset
UTC+1
UTC offset
UTC+0
BST to UTC conversion chart
British Summer Time (BST)
Coordinated Universal Time (UTC)
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11:00 PM -1 day
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Best time to meet
A standard 9 to 5 workday overlaps from 10:00 AM to 5:00 PM BST (9:00 AM to 4:00 PM UTC). Schedule inside that window to catch both coasts during business hours.
UTC is 1 hour behind BST. So 9:00 AM BST is 8:00 AM UTC, and 5:00 PM BST is 4:00 PM UTC.
What time is it in UTC when it is 12:00 PM BST?
When it is 12:00 PM (noon) BST in British Summer Time, it is 11:00 AM UTC in Coordinated Universal Time.
How many hours difference is there between BST and UTC?
There is a 1 hour difference. Coordinated Universal Time (UTC) runs 1 hour behind British Summer Time (BST).
Do BST and UTC observe daylight saving time?
Neither British Summer Time nor Coordinated Universal Time shifts its clocks for daylight saving time, so the 1 hour difference between them is the same all year. BST is itself the daylight-saving period of the United Kingdom: clocks there run on BST from late March to late October and return to GMT in winter.
What is the best time to schedule a meeting between BST and UTC?
A standard 9-to-5 workday overlaps from 10:00 AM to 5:00 PM BST (9:00 AM to 4:00 PM UTC). Scheduling inside that window keeps the call during business hours in both British Summer Time and Coordinated Universal Time.
Which cities use BST and UTC?
British Summer Time (BST) covers cities such as London, Manchester, Birmingham, Glasgow, Liverpool, Edinburgh. Coordinated Universal Time (UTC) covers cities such as Reykjavik, Accra, Dakar, Abidjan, Bamako.
