GMT 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 GMT to Halifax Time, subtract 4 hours from the GMT time: 9:00 AM GMT = 5:00 AM AST.
GMT (GMT) is used in Same offset as UTC. The UK and Ireland use GMT in winter; Iceland, Ghana and Senegal all year. Halifax Time (Halifax time) is used in Halifax, Canada.
The UK is on GMT only in winter; in summer it uses BST (UTC+1).
GMT to Halifax Time time conversion table
GMT to Halifax Time on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| GMT | 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 GMT to Halifax Time
Subtract 4 hours from the GMT 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 GMT and Halifax Time
The time difference between GMT 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 GMT.
- 8 Mar 2026 – 31 Oct 2026: Halifax Time is 3 hours behind of GMT.
- 1 Nov 2026 – 31 Dec 2026: Halifax Time is 4 hours behind of GMT.
GMT and Halifax Time during daylight saving time
- GMT does not observe daylight saving time; it stays on UTC+0 all year.
- 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 GMT and Halifax Time
GMT 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.
GMT to Halifax Time FAQ
What is the time difference between GMT and Halifax Time?
Right now AST is 4 hours behind GMT. The gap changes 3 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM GMT in Halifax Time?
9:00 AM GMT is 5:00 AM AST.
What is 12 PM (noon) GMT in Halifax Time?
12:00 PM GMT is 8:00 AM AST.
Is Halifax Time ahead of or behind GMT?
AST is 4 hours behind GMT, so it is earlier in Halifax Time than in GMT.
Does GMT change for daylight saving time?
No. GMT stays on the same offset all year, so conversions never shift for daylight saving time.
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 GMT and Halifax Time?
GMT 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 GMT
Convert GMT to other time zones
Convert other time zones to Halifax Time
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.