BST to CST Converter
CST is 6 hours behind GMT. 9:00 AM GMT = 3:00 AM CST.
CST is 6 hours behind GMT at the moment. To convert BST to CST, subtract 6 hours from the BST time: 9:00 AM GMT = 3:00 AM CST.
BST (British Time) is used in United Kingdom from late March to late October. CST (Central Time) is used in Chicago, Dallas, Houston, Minneapolis, New Orleans, Winnipeg; Mexico City and Central America use UTC−6 all year.
BST here means British Summer Time, not Bangladesh Standard Time. CST here means North American Central Standard Time, not China Standard Time. BST (British Summer Time) is not in force right now: United Kingdom from late March to late October is currently on GMT. This page uses whichever name applies on the date you pick, so the numbers below say GMT.
BST to CST time conversion table
BST to CST on 6 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| BST | CST | Day |
|---|---|---|
| 12:00 AM GMT | 6:00 PM CST | previous day |
| 1:00 AM GMT | 7:00 PM CST | previous day |
| 2:00 AM GMT | 8:00 PM CST | previous day |
| 3:00 AM GMT | 9:00 PM CST | previous day |
| 4:00 AM GMT | 10:00 PM CST | previous day |
| 5:00 AM GMT | 11:00 PM CST | previous day |
| 6:00 AM GMT | 12:00 AM CST | night |
| 7:00 AM GMT | 1:00 AM CST | night |
| 8:00 AM GMT | 2:00 AM CST | night |
| 9:00 AM GMT | 3:00 AM CST | night |
| 10:00 AM GMT | 4:00 AM CST | night |
| 11:00 AM GMT | 5:00 AM CST | night |
| 12:00 PM GMT | 6:00 AM CST | — |
| 1:00 PM GMT | 7:00 AM CST | — |
| 2:00 PM GMT | 8:00 AM CST | — |
| 3:00 PM GMT | 9:00 AM CST | work hours |
| 4:00 PM GMT | 10:00 AM CST | work hours |
| 5:00 PM GMT | 11:00 AM CST | — |
| 6:00 PM GMT | 12:00 PM CST | — |
| 7:00 PM GMT | 1:00 PM CST | — |
| 8:00 PM GMT | 2:00 PM CST | — |
| 9:00 PM GMT | 3:00 PM CST | — |
| 10:00 PM GMT | 4:00 PM CST | — |
| 11:00 PM GMT | 5:00 PM CST | — |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert BST to CST
Subtract 6 hours from the BST time to get CST.
Example: 9:00 AM GMT = 3:00 AM CST.
Across midnight: 1:00 AM GMT = 7:00 PM CST (previous day). The date changes, so always check the day as well as the hour.
Time difference between BST and CST
The time difference between BST and CST is not the same all year, because the two sides change for daylight saving time on different dates. In 2026 it works out like this:
- 1 Jan 2026 – 7 Mar 2026: CST is 6 hours behind of BST.
- 8 Mar 2026 – 28 Mar 2026: CST is 5 hours behind of BST.
- 29 Mar 2026 – 24 Oct 2026: CST is 6 hours behind of BST.
- 25 Oct 2026 – 31 Oct 2026: CST is 5 hours behind of BST.
- 1 Nov 2026 – 31 Dec 2026: CST is 6 hours behind of BST.
BST and CST during daylight saving time
- BST next changes on 28 Mar 2027: clocks go forward one hour at 00:59 local time, from GMT (UTC+0) to BST (UTC+1).
- CST next changes on 14 Mar 2027: clocks go forward one hour at 01:59 local time, from CST (UTC−6) to CDT (UTC−5).
Best time for a meeting between BST and CST
BST and CST share 2 hours of the 9 AM–5 PM working day. Any time between 3:00 PM and 5:00 PM GMT lands between 9:00 AM and 11:00 AM CST, inside working hours for both.
BST to CST FAQ
What is the time difference between BST and CST?
Right now CST is 6 hours behind GMT. The gap changes 5 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM BST in CST?
9:00 AM GMT is 3:00 AM CST.
What is 12 PM (noon) BST in CST?
12:00 PM GMT is 6:00 AM CST.
Is CST ahead of or behind BST?
CST is 6 hours behind GMT, so it is earlier in CST than in BST.
Does BST change for daylight saving time?
Yes. BST next changes on 28 Mar 2027, when clocks go forward one hour from GMT to BST.
Does CST change for daylight saving time?
Yes. CST next changes on 14 Mar 2027, when clocks go forward one hour from CST to CDT.
What is the best time for a meeting between BST and CST?
BST and CST share 2 hours of the 9 AM–5 PM working day. Any time between 3:00 PM and 5:00 PM GMT lands between 9:00 AM and 11:00 AM CST, inside working hours for both.
Is CT the same as CST?
CST is the winter (standard) name of Central Time (CT). From March to November the same clocks are called CDT. This converter always uses the one in force on the date you choose.
Related conversions
Convert CST to BST
Convert BST to other time zones
Convert other time zones to CST
Learn more
Updated 6 November 2026. Time zone data: IANA tz database.