CDT to BST
+6hCDT
CDTSOURCEBST
BSTGreen rows indicate typical business hours (9 AM - 5 PM)
CDT and BST on the World Map
The map below highlights the CDT (Central Daylight Time) and BST (British Summer Time) timezone regions across the globe.
CDT – Central Daylight Time
UTC-05:00Central Daylight Time (CDT) is the daylight saving offset in the Central Time Zone, 5 hours behind UTC.
- •CDT is the same offset as EST (UTC-05:00), which can cause confusion.
- •CDT runs from the second Sunday in March to the first Sunday in November.
BST – British Summer Time
UTC+01:00British Summer Time (BST, UTC+01:00) is the daylight saving period in the United Kingdom, running from late March to late October.
- •BST runs from the last Sunday in March to the last Sunday in October.
- •BST is exactly one hour ahead of GMT, the UK's standard time.
- •During BST, London is 4 hours ahead of New York while the US is on Eastern Daylight Time.
- •The Isle of Man and the Channel Islands also observe BST.
Understanding the +6h Gap: CDT vs BST
CDT runs on Central Daylight Time (CDT) at UTC-05:00. BST runs on British Summer Time (BST) at UTC+01:00. That puts CDT 6 hours ahead of BST — a difference of +6h at the current offsets.
In practice, when it is 9:00 AM in CDT it is 3:00 PM in BST. Midnight in CDT is 6:00 AM in BST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
CDT to BST time conversion table
| CDT (CDT) | BST (BST) | Day |
|---|---|---|
| 12:00 AM | 6:00 AM | same day |
| 6:00 AM | 12:00 PM | same day |
| 7:00 AM | 1:00 PM | same day |
| 8:00 AM | 2:00 PM | same day |
| 9:00 AM | 3:00 PM | same day |
| 12:00 PM | 6:00 PM | same day |
| 3:00 PM | 9:00 PM | same day |
| 5:00 PM | 11:00 PM | same day |
| 6:00 PM | 12:00 AM | next day |
| 9:00 PM | 3:00 AM | next day |
Why people convert CDT to BST time
- Scheduling a call from CDT to BST: a 10:00 AM start in CDT lands at 4:00 PM in BST, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both CDT and BST are inside the 9-to-5 working day between 9:00 AM and 11:00 AM CDT time (3:00 PM–5:00 PM BST). That is roughly 2 hours of usable overlap.
- Watching a live event or market open: CDT viewers need 3:00 PM in BST to catch a 9:00 AM start there, and 6:00 PM if the event is anchored to CDT.
- Always state the zone abbreviation, not just the hour. "3:00 PM CDT" is unambiguous; "3 PM" across a +6h gap is not.
- Block 9:00 AM–11:00 AM CDT as the recurring meeting window if you work primarily from CDT and need BST colleagues present.
About CDT (Central Daylight Time)
Central Daylight Time (CDT) is observed during summer months in the US and Canadian portions of the Central Time Zone. Clocks are moved forward by one hour, aligning with Eastern Standard Time (EST). Most of Mexico and Central America do not observe CDT, staying on CST year-round.
About BST (British Summer Time)
British Summer Time (BST) is the daylight saving period in the United Kingdom, when clocks move one hour forward from Greenwich Mean Time (GMT, UTC+00:00) to UTC+01:00. It runs from the last Sunday in March to the last Sunday in October. England, Scotland, Wales and Northern Ireland all follow it, along with the Isle of Man and the Channel Islands of Jersey and Guernsey. During BST, London is one hour ahead of UTC, four hours ahead of New York on Eastern Daylight Time, and five hours ahead of New York once the United States returns to Eastern Standard Time in November. BST is also used to abbreviate Bangladesh Standard Time (UTC+06:00), which is listed separately on this site.
Best time to call between CDT and BST
Both CDT and BST sit inside the 9 AM – 5 PM working day between 9:00 AM–11:00 AM CDT, which is 3:00 PM–5:00 PM BST. That gives roughly 2 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
CDT and BST overlap for about 2 hours during the working day — enough for meetings if you avoid the edges of the window.
CDT is 6 hours ahead of BST (CDT UTC-05:00 → BST UTC+01:00). The shared working window is 9:00 AM–11:00 AM CDT. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
CDT
☀ Currently in DST
Standard: UTC-06:00 · DST: UTC-05:00
Clocks fall back on Sun, Nov 1, 2026
BST
☀ Currently in DST
Standard: UTC+00:00 · DST: UTC+01:00
Clocks fall back on Sun, Oct 25, 2026
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between CDT and BST?
CDT (CDT, UTC-05:00) is 6 hours ahead of BST (BST, UTC+01:00). The gap is currently +6h.
How do I convert CDT time to BST time?
Add +6h to CDT local time. For example, 9:00 AM in CDT is 3:00 PM in BST.
What time is it in BST right now?
BST uses BST at UTC+01:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +6h offset from CDT.
What is the best time to call BST from CDT?
Call between 9:00 AM and 11:00 AM CDT — that maps to 3:00 PM–5:00 PM BST and keeps both parties inside the working day.
Which is ahead, CDT or BST?
CDT is 6 hours ahead of BST. When it is 12:00 PM in CDT it is 6:00 PM in BST.
Does daylight saving time affect the CDT–BST difference?
Neither zone observes daylight saving time, so the +6h offset between CDT and BST is fixed all year.
Which other cities share CDT's time zone?
CDT also covers Chicago, Houston, Dallas, Austin, Winnipeg, Nashville.
Which countries use CDT, CDT's zone?
CDT is used in United States (Central), Canada (Manitoba).
Is there a day difference between CDT and BST?
Not normally. The +6h gap only pushes the date over for late-evening times.
What is the time difference between CDT and BST?
BST is +6h from CDT.
What timezone is CDT in?
CDT operates on its local timezone.
What timezone is BST in?
BST operates on its local timezone.
Which countries use CDT (Central Daylight Time)?
CDT is used in United States (Central), Canada (Manitoba).
Does CDT observe daylight saving time?
Yes, CDT switches to CST during summer months.
What are some interesting facts about CDT?
CDT is the same offset as EST (UTC-05:00), which can cause confusion. CDT runs from the second Sunday in March to the first Sunday in November.
Which cities are in the BST timezone?
Major cities in the BST timezone include London, Birmingham, Manchester, Glasgow, Edinburgh, Cardiff, Belfast, Liverpool.
What is the UTC offset for BST?
British Summer Time (BST) is at UTC+01:00. During daylight saving time, it shifts to BST.
What should I know about the BST timezone?
BST runs from the last Sunday in March to the last Sunday in October. BST is exactly one hour ahead of GMT, the UK's standard time.
When is it midnight in CDT, what time is it in BST?
When it is 12:00 AM (midnight) in CDT (CDT), it is +6h later in BST (BST).
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See every conversion from CDT →·See every conversion from BST →