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