BST to UTC Time Converter
Coordinated Universal Time (UTC) is currently 1 hour behind British Summer Time (BST). BST is UTC+1 and UTC is UTC+0. The table below converts every hour of the day between the two, and the call planner shows where working hours line up.
Best Time for a Call
Both sides are inside 9:00 AM to 5:00 PM office hours between 10:00 AM and 5:00 PM in BST, which is 9:00 AM to 4:00 PM in UTC.
Comparing more than two places? The Overlap Zones tool shows working hours for several cities on one grid.
Hour by Hour: BST to UTC
Rows marked office hours fall between 9:00 AM and 5:00 PM in both places. For a specific date, use the interactive converter.
Does the Difference Change During the Year?
BST and UTC are fixed offsets, so the difference between them never changes.
BST is UTC+1, used in the UK from late March to late October. In winter the UK is on GMT. BST can also refer to Bangladesh Standard Time, which is UTC+6.
UTC is the global time standard. It has no daylight saving and never shifts.
Frequently Asked Questions
How many hours behind is UTC compared to BST?
UTC is currently 1 hour behind BST. BST and UTC are fixed offsets, so the difference between them never changes.
What time is 9:00 AM in BST in UTC?
9:00 AM in BST is 8:00 AM in UTC.
What is the best time for a call between BST and UTC?
Both sides are inside 9:00 AM to 5:00 PM office hours between 10:00 AM and 5:00 PM in BST, which is 9:00 AM to 4:00 PM in UTC.