When it's 9:00 am in London, it's 3:00 am in Chicago. Only 2 hours of your working days overlap, so the meeting slot is worth picking with care.
Convert British Summer Time (BST) to Central Standard Time (CST) for any date and time.
Central Time is 6 hours behind UK time for most of the year.
Right now BST is UTC+0 and Central Time is on CST (UTC−6). Central Time switches to daylight saving time on 14 March 2027.
9:00 am to 5:00 pm BST is 3:00 am to 11:00 am CST.
UK timeReference
United Kingdom
Wed, Nov 4
Central Time
US, Canada & Mexico
Tue, Nov 3Previous day
Best time to meet 3:00 PM–5:00 PM in UK time on Wed, Nov 4, when everyone is inside working hours.
Book a meeting in this windowWorking hours: 9:00 AM–5:00 PM, Monday to FridayEveryone at work
Every hour of the day in BST, converted to CST. Hatched cells are working hours (9:00 am to 5:00 pm); rows with the accent bar are working hours in both zones.
| BST | CSTUntil 14 March 2027; 28 March 2027 to 31 October 2027 | CDT14 March 2027 to 28 March 2027; From 31 October 2027 |
|---|---|---|
| 12:00 am BST | 6:00 pm CST(day before) | 7:00 pm CDT(day before) |
| 1:00 am BST | 7:00 pm CST(day before) | 8:00 pm CDT(day before) |
| 2:00 am BST | 8:00 pm CST(day before) | 9:00 pm CDT(day before) |
| 3:00 am BST | 9:00 pm CST(day before) | 10:00 pm CDT(day before) |
| 4:00 am BST | 10:00 pm CST(day before) | 11:00 pm CDT(day before) |
| 5:00 am BST | 11:00 pm CST(day before) | 12:00 am CDT |
| 6:00 am BST | 12:00 am CST | 1:00 am CDT |
| 7:00 am BST | 1:00 am CST | 2:00 am CDT |
| 8:00 am BST | 2:00 am CST | 3:00 am CDT |
| 9:00 am BST | 3:00 am CST | 4:00 am CDT |
| 10:00 am BST | 4:00 am CST | 5:00 am CDT |
| 11:00 am BST | 5:00 am CST | 6:00 am CDT |
| 12:00 pm BST | 6:00 am CST | 7:00 am CDT |
| 1:00 pm BST | 7:00 am CST | 8:00 am CDT |
| 2:00 pm BST | 8:00 am CST | 9:00 am CDT |
| 3:00 pm BST | 9:00 am CST | 10:00 am CDT |
| 4:00 pm BST | 10:00 am CST | 11:00 am CDT |
| 5:00 pm BST | 11:00 am CST | 12:00 pm CDT |
| 6:00 pm BST | 12:00 pm CST | 1:00 pm CDT |
| 7:00 pm BST | 1:00 pm CST | 2:00 pm CDT |
| 8:00 pm BST | 2:00 pm CST | 3:00 pm CDT |
| 9:00 pm BST | 3:00 pm CST | 4:00 pm CDT |
| 10:00 pm BST | 4:00 pm CST | 5:00 pm CDT |
| 11:00 pm BST | 5:00 pm CST | 6:00 pm CDT |
Your working hours overlap for 2 hours, from 3:00 pm BST (9:00 am CST) to 5:00 pm BST (11:00 am CST). That's the best window for a meeting.
British Summer Time is UTC+1. BST is also used for Bangladesh Standard Time (UTC+6). This page converts UK time.
The United Kingdom from the last Sunday in March to the last Sunday in October. The rest of the year the UK is on GMT (UTC+0).
Central Standard Time is UTC−6. CST is also used for China Standard Time (UTC+8) and Cuba Standard Time (UTC−5). This page converts North American Central Time.
Texas, Illinois, Minnesota, Louisiana and most of the Midwest and South, plus Manitoba in Canada. Saskatchewan and most of Mexico stay on CST all year. CT is the short form for the whole zone.