AST to ICT Converter
ICT is 11 hours ahead of AST. 9:00 AM AST = 8:00 PM ICT.
ICT is 11 hours ahead of AST at the moment. To convert AST to ICT, add 11 hours to the AST time: 9:00 AM AST = 8:00 PM ICT.
AST (Atlantic Time) is used in Nova Scotia, New Brunswick, PEI; Puerto Rico and the Eastern Caribbean (all year). ICT (Indochina Time) is used in Thailand, Vietnam, Cambodia, Laos.
AST here is Atlantic Standard Time, not Arabia Standard Time.
AST to ICT time conversion table
AST to ICT on 6 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| AST | ICT | Day |
|---|---|---|
| 12:00 AM AST | 11:00 AM ICT | — |
| 1:00 AM AST | 12:00 PM ICT | — |
| 2:00 AM AST | 1:00 PM ICT | — |
| 3:00 AM AST | 2:00 PM ICT | — |
| 4:00 AM AST | 3:00 PM ICT | — |
| 5:00 AM AST | 4:00 PM ICT | — |
| 6:00 AM AST | 5:00 PM ICT | — |
| 7:00 AM AST | 6:00 PM ICT | — |
| 8:00 AM AST | 7:00 PM ICT | — |
| 9:00 AM AST | 8:00 PM ICT | — |
| 10:00 AM AST | 9:00 PM ICT | — |
| 11:00 AM AST | 10:00 PM ICT | night |
| 12:00 PM AST | 11:00 PM ICT | night |
| 1:00 PM AST | 12:00 AM ICT | next day |
| 2:00 PM AST | 1:00 AM ICT | next day |
| 3:00 PM AST | 2:00 AM ICT | next day |
| 4:00 PM AST | 3:00 AM ICT | next day |
| 5:00 PM AST | 4:00 AM ICT | next day |
| 6:00 PM AST | 5:00 AM ICT | next day |
| 7:00 PM AST | 6:00 AM ICT | next day |
| 8:00 PM AST | 7:00 AM ICT | next day |
| 9:00 PM AST | 8:00 AM ICT | next day |
| 10:00 PM AST | 9:00 AM ICT | next day |
| 11:00 PM AST | 10:00 AM ICT | next day |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert AST to ICT
Add 11 hours to the AST time to get ICT.
Example: 9:00 AM AST = 8:00 PM ICT.
Across midnight: 10:00 PM AST = 9:00 AM ICT (next day). The date changes, so always check the day as well as the hour.
Time difference between AST and ICT
The time difference between AST and ICT 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:
- 31 Dec 2025 – 7 Mar 2026: ICT is 11 hours ahead of AST.
- 8 Mar 2026 – 31 Oct 2026: ICT is 10 hours ahead of AST.
- 1 Nov 2026 – 30 Dec 2026: ICT is 11 hours ahead of AST.
AST and ICT during daylight saving time
- AST next changes on 14 Mar 2027: clocks go forward one hour at 01:59 local time, from AST (UTC−4) to ADT (UTC−3).
- ICT does not observe daylight saving time; it stays on UTC+7 all year.
Best time for a meeting between AST and ICT
AST and ICT have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM AST, which is 6:00 PM ICT.
AST to ICT FAQ
What is the time difference between AST and ICT?
Right now ICT is 11 hours ahead of AST. The gap changes 3 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM AST in ICT?
9:00 AM AST is 8:00 PM ICT.
What is 12 PM (noon) AST in ICT?
12:00 PM AST is 11:00 PM ICT.
Is ICT ahead of or behind AST?
ICT is 11 hours ahead of AST, so it is later in ICT than in AST.
Does AST change for daylight saving time?
Yes. AST next changes on 14 Mar 2027, when clocks go forward one hour from AST to ADT.
Does ICT change for daylight saving time?
No. ICT stays on the same offset all year, so conversions never shift for daylight saving time.
What is the best time for a meeting between AST and ICT?
AST and ICT have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM AST, which is 6:00 PM ICT.
Related conversions
Convert ICT to AST
Convert AST to other time zones
Convert other time zones to ICT
Learn more
Updated 6 November 2026. Time zone data: IANA tz database.