AST / ADT
AST — Atlantic Time
Tuesday, November 3, 2026
AST · UTC−4
Nova Scotia, New Brunswick and Prince Edward Island (with daylight saving), plus Puerto Rico and much of the Caribbean, which stay on AST (UTC−4) all year.
Daylight saving time
Sunday, March 14, 2027: clocks go forward 1 hour at 2:00 AM local time (UTC−4 → UTC−3).
AST is the standard-time name. While daylight saving time is in effect the same region uses ADT. The clock on this page always shows the time actually in effect.
Convert AST to other time zones
| Time zone | Time now | Difference |
|---|---|---|
| AST to UTC Coordinated Universal Time | 12:00 PM | 4 hours ahead of AST |
| AST to GMT Greenwich Mean Time | 12:00 PM | 4 hours ahead of AST |
| AST to EST Eastern Time | 7:00 AM | 1 hour behind AST |
| AST to CST Central Time | 6:00 AM | 2 hours behind AST |
| AST to MST Mountain Time | 5:00 AM | 3 hours behind AST |
| AST to PST Pacific Time | 4:00 AM | 4 hours behind AST |
| AST to AKST Alaska Time | 3:00 AM | 5 hours behind AST |
| AST to HST Hawaii-Aleutian Standard Time | 2:00 AM | 6 hours behind AST |
| BRT Brasília Time | 9:00 AM | 1 hour ahead of AST |
| AST to BST British Summer Time | 12:00 PM | 4 hours ahead of AST |
| AST to CET Central European Time | 1:00 PM | 5 hours ahead of AST |
| AST to EET Eastern European Time | 2:00 PM | 6 hours ahead of AST |
| MSK Moscow Time | 3:00 PM | 7 hours ahead of AST |
| GST Gulf Standard Time | 4:00 PM | 8 hours ahead of AST |
| AST to PKT Pakistan Standard Time | 5:00 PM | 9 hours ahead of AST |
| AST to IST India Standard Time | 5:30 PM | 9 hours 30 minutes ahead of AST |
| ICT Indochina Time | 7:00 PM | 11 hours ahead of AST |
| AST to SGT Singapore Time | 8:00 PM | 12 hours ahead of AST |
| HKT Hong Kong Time | 8:00 PM | 12 hours ahead of AST |
| AST to PHT Philippine Time | 8:00 PM | 12 hours ahead of AST |
| AWST Australian Western Standard Time | 8:00 PM | 12 hours ahead of AST |
| AST to JST Japan Standard Time | 9:00 PM | 13 hours ahead of AST |
| AST to KST Korea Standard Time | 9:00 PM | 13 hours ahead of AST |
| ACST Australian Central Time | 10:30 PM | 14 hours 30 minutes ahead of AST |
| AST to AEST Australian Eastern Time | 11:00 PM | 15 hours ahead of AST |
| AST to NZST New Zealand Time | 1:00 AM | 17 hours ahead of AST |
| WAT West Africa Time | 1:00 PM | 5 hours ahead of AST |
| SAST South Africa Standard Time | 2:00 PM | 6 hours ahead of AST |
| EAT East Africa Time | 3:00 PM | 7 hours ahead of AST |