CST to BST Time Converter
British Summer Time (BST) is currently 7 hours ahead of Central Standard Time (CST). CST is UTC-6 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 10:00 AM in CST, which is 4:00 PM 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: CST 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?
CST and BST are fixed offsets, so the difference between them never changes.
This page covers North American Central Standard Time, UTC-6. The region switches to CDT (UTC-5) in summer. CST can also refer to China Standard Time, which is UTC+8.
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 CST?
BST is currently 7 hours ahead of CST. CST and BST are fixed offsets, so the difference between them never changes.
What time is 9:00 AM in CST in BST?
9:00 AM in CST is 4:00 PM in BST.
What is the best time for a call between CST and BST?
Both sides are inside 9:00 AM to 5:00 PM office hours between 9:00 AM and 10:00 AM in CST, which is 4:00 PM to 5:00 PM in BST.