AST to NZST Converter
NZDT is 17 hours ahead of AST. 9:00 AM AST = 2:00 AM NZDT (next day).
NZDT is 17 hours ahead of AST at the moment. To convert AST to NZST, add 17 hours to the AST time: 9:00 AM AST = 2:00 AM NZDT (next day).
AST (Atlantic Time) is used in Nova Scotia, New Brunswick, PEI; Puerto Rico and the Eastern Caribbean (all year). NZST (New Zealand Time) is used in New Zealand.
AST here is Atlantic Standard Time, not Arabia Standard Time. NZST (New Zealand Standard Time) is not in force right now: New Zealand is currently on NZDT. This page uses whichever name applies on the date you pick, so the numbers below say NZDT.
AST to NZST time conversion table
AST to NZST on 6 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| AST | NZST | Day |
|---|---|---|
| 12:00 AM AST | 5:00 PM NZDT | — |
| 1:00 AM AST | 6:00 PM NZDT | — |
| 2:00 AM AST | 7:00 PM NZDT | — |
| 3:00 AM AST | 8:00 PM NZDT | — |
| 4:00 AM AST | 9:00 PM NZDT | — |
| 5:00 AM AST | 10:00 PM NZDT | night |
| 6:00 AM AST | 11:00 PM NZDT | night |
| 7:00 AM AST | 12:00 AM NZDT | next day |
| 8:00 AM AST | 1:00 AM NZDT | next day |
| 9:00 AM AST | 2:00 AM NZDT | next day |
| 10:00 AM AST | 3:00 AM NZDT | next day |
| 11:00 AM AST | 4:00 AM NZDT | next day |
| 12:00 PM AST | 5:00 AM NZDT | next day |
| 1:00 PM AST | 6:00 AM NZDT | next day |
| 2:00 PM AST | 7:00 AM NZDT | next day |
| 3:00 PM AST | 8:00 AM NZDT | next day |
| 4:00 PM AST | 9:00 AM NZDT | work hours |
| 5:00 PM AST | 10:00 AM NZDT | next day |
| 6:00 PM AST | 11:00 AM NZDT | next day |
| 7:00 PM AST | 12:00 PM NZDT | next day |
| 8:00 PM AST | 1:00 PM NZDT | next day |
| 9:00 PM AST | 2:00 PM NZDT | next day |
| 10:00 PM AST | 3:00 PM NZDT | next day |
| 11:00 PM AST | 4:00 PM NZDT | next day |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert AST to NZST
Add 17 hours to the AST time to get NZST.
Example: 9:00 AM AST = 2:00 AM NZDT (next day).
Across midnight: 10:00 PM AST = 3:00 PM NZDT (next day). The date changes, so always check the day as well as the hour.
Time difference between AST and NZST
The time difference between AST and NZST 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: NZST is 17 hours ahead of AST.
- 8 Mar 2026 – 3 Apr 2026: NZST is 16 hours ahead of AST.
- 4 Apr 2026 – 25 Sep 2026: NZST is 15 hours ahead of AST.
- 26 Sep 2026 – 31 Oct 2026: NZST is 16 hours ahead of AST.
- 1 Nov 2026 – 30 Dec 2026: NZST is 17 hours ahead of AST.
AST and NZST 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).
- NZST next changes on 4 Apr 2027: clocks go back one hour at 02:59 local time, from NZDT (UTC+13) to NZST (UTC+12).
Best time for a meeting between AST and NZST
AST and NZST have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 2:00 PM AST, which is 7:00 AM NZDT.
AST to NZST FAQ
What is the time difference between AST and NZST?
Right now NZDT is 17 hours ahead of AST. The gap changes 5 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM AST in NZST?
9:00 AM AST is 2:00 AM NZDT (next day).
What is 12 PM (noon) AST in NZST?
12:00 PM AST is 5:00 AM NZDT (next day).
Is NZST ahead of or behind AST?
NZDT is 17 hours ahead of AST, so it is later in NZST 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 NZST change for daylight saving time?
Yes. NZST next changes on 4 Apr 2027, when clocks go back one hour from NZDT to NZST.
What is the best time for a meeting between AST and NZST?
AST and NZST have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 2:00 PM AST, which is 7:00 AM NZDT.
Related conversions
Convert NZST to AST
Convert AST to other time zones
Convert other time zones to NZST
Learn more
Updated 6 November 2026. Time zone data: IANA tz database.