AST – Atlantic Standard Time
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What Time Is It in AST?
Places on AST are on ADT (UTC−3) right now, and there it is 4:04 AM on Tuesday, October 6, 2026. AST itself (UTC−4) is 3:04 AM.
What Is AST?
AST stands for Atlantic Standard Time, which is UTC−4. Atlantic Time is used in the Canadian Maritime provinces, including Nova Scotia and New Brunswick, where it switches to Atlantic Daylight Time (ADT, UTC−3) in summer. Puerto Rico, the Dominican Republic and many Caribbean islands use AST all year.
On Sunday, November 1, 2026 the clocks change to AST (UTC−4).
AST Time Zone
ADTTime Zone
UTC−3UTC Offset
In effectDaylight Saving
AST to Other Time Zones
When it is 12:00 PM (noon) AST, it is:
| UTC Coordinated Universal Time | 4:00 PM |
| EST Eastern Standard Time | 11:00 AM |
| CST Central Standard Time | 10:00 AM |
| MST Mountain Standard Time | 9:00 AM |
| PST Pacific Standard Time | 8:00 AM |
| GMT Greenwich Mean Time | 4:00 PM |
| CET Central European Time | 5:00 PM |
| EET Eastern European Time | 6:00 PM |
| IST India Standard Time | 9:30 PM |
| CST China Standard Time | 12:00 AM (next day) |
| JST Japan Standard Time | 1:00 AM (next day) |
| AEST Australian Eastern Standard Time | 2:00 AM (next day) |
Time in Other Cities
The time now in other major cities, and how far each one is ahead of or behind the time in AST:
| City | Local Time | Difference |
|---|---|---|
| New York | 3:04 AM | 1 hour behind |
| Los Angeles | 12:04 AM | 4 hours behind |
| London | 8:04 AM | 4 hours ahead |
| Paris | 9:04 AM | 5 hours ahead |
| Dubai | 11:04 AM | 7 hours ahead |
| New Delhi | 12:34 PM | 8 hours 30 minutes ahead |
| Manila | 3:04 PM | 11 hours ahead |
| Tokyo | 4:04 PM | 12 hours ahead |
| Sydney | 6:04 PM | 14 hours ahead |