UTC to BST Time Converter
British Summer Time (BST) is currently 1 hour ahead of Coordinated Universal Time (UTC). UTC is UTC+0 and BST is UTC+1. 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 9:00 AM and 4:00 PM in UTC, which is 10:00 AM to 5:00 PM in BST.
Comparing more than two places? The Overlap Zones tool shows working hours for several cities on one grid.
Hour by Hour: UTC to BST
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?
UTC and BST are fixed offsets, so the difference between them never changes.
UTC is the global time standard. It has no daylight saving and never shifts.
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.
Frequently Asked Questions
How many hours ahead is BST compared to UTC?
BST is currently 1 hour ahead of UTC. UTC and BST are fixed offsets, so the difference between them never changes.
What time is 9:00 AM in UTC in BST?
9:00 AM in UTC is 10:00 AM in BST.
What is the best time for a call between UTC and BST?
Both sides are inside 9:00 AM to 5:00 PM office hours between 9:00 AM and 4:00 PM in UTC, which is 10:00 AM to 5:00 PM in BST.