BST to Halifax Time Converter
AST is 4 hours behind GMT. 9:00 AM GMT = 5:00 AM AST.
AST is 4 hours behind GMT at the moment. To convert BST to Halifax Time, subtract 4 hours from the BST time: 9:00 AM GMT = 5:00 AM AST.
BST (British Time) is used in United Kingdom from late March to late October. Halifax Time (Halifax time) is used in Halifax, Canada.
BST here means British Summer Time, not Bangladesh 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 Halifax Time time conversion table
BST to Halifax Time on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| BST | Halifax Time | Day |
|---|---|---|
| 12:00 AM GMT | 8:00 PM AST | previous day |
| 1:00 AM GMT | 9:00 PM AST | previous day |
| 2:00 AM GMT | 10:00 PM AST | previous day |
| 3:00 AM GMT | 11:00 PM AST | previous day |
| 4:00 AM GMT | 12:00 AM AST | night |
| 5:00 AM GMT | 1:00 AM AST | night |
| 6:00 AM GMT | 2:00 AM AST | night |
| 7:00 AM GMT | 3:00 AM AST | night |
| 8:00 AM GMT | 4:00 AM AST | night |
| 9:00 AM GMT | 5:00 AM AST | night |
| 10:00 AM GMT | 6:00 AM AST | — |
| 11:00 AM GMT | 7:00 AM AST | — |
| 12:00 PM GMT | 8:00 AM AST | — |
| 1:00 PM GMT | 9:00 AM AST | work hours |
| 2:00 PM GMT | 10:00 AM AST | work hours |
| 3:00 PM GMT | 11:00 AM AST | work hours |
| 4:00 PM GMT | 12:00 PM AST | work hours |
| 5:00 PM GMT | 1:00 PM AST | — |
| 6:00 PM GMT | 2:00 PM AST | — |
| 7:00 PM GMT | 3:00 PM AST | — |
| 8:00 PM GMT | 4:00 PM AST | — |
| 9:00 PM GMT | 5:00 PM AST | — |
| 10:00 PM GMT | 6:00 PM AST | — |
| 11:00 PM GMT | 7:00 PM AST | — |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert BST to Halifax Time
Subtract 4 hours from the BST time to get Halifax Time.
Example: 9:00 AM GMT = 5:00 AM AST.
Across midnight: 1:00 AM GMT = 9:00 PM AST (previous day). The date changes, so always check the day as well as the hour.
Time difference between BST and Halifax Time
The time difference between BST and Halifax Time 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: Halifax Time is 4 hours behind of BST.
- 8 Mar 2026 – 28 Mar 2026: Halifax Time is 3 hours behind of BST.
- 29 Mar 2026 – 24 Oct 2026: Halifax Time is 4 hours behind of BST.
- 25 Oct 2026 – 31 Oct 2026: Halifax Time is 3 hours behind of BST.
- 1 Nov 2026 – 31 Dec 2026: Halifax Time is 4 hours behind of BST.
BST and Halifax Time 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).
- Halifax Time next changes on 14 Mar 2027: clocks go forward one hour at 01:59 local time, from AST (UTC−4) to ADT (UTC−3).
Best time for a meeting between BST and Halifax Time
BST and Halifax Time share 4 hours of the 9 AM–5 PM working day. Any time between 1:00 PM and 5:00 PM GMT lands between 9:00 AM and 1:00 PM AST, inside working hours for both.
BST to Halifax Time FAQ
What is the time difference between BST and Halifax Time?
Right now AST is 4 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 Halifax Time?
9:00 AM GMT is 5:00 AM AST.
What is 12 PM (noon) BST in Halifax Time?
12:00 PM GMT is 8:00 AM AST.
Is Halifax Time ahead of or behind BST?
AST is 4 hours behind GMT, so it is earlier in Halifax Time 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 Halifax Time change for daylight saving time?
Yes. Halifax Time next changes on 14 Mar 2027, when clocks go forward one hour from AST to ADT.
What is the best time for a meeting between BST and Halifax Time?
BST and Halifax Time share 4 hours of the 9 AM–5 PM working day. Any time between 1:00 PM and 5:00 PM GMT lands between 9:00 AM and 1:00 PM AST, inside working hours for both.
Related conversions
Convert Halifax Time to BST
Convert BST to other time zones
Convert other time zones to Halifax Time
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.