JST to AST Time Converter
JST
10:41 PM
AST
10:41 AM
10 May 2026
JST
The common time zone in Japan is the JST (Japan Standard Time). It is 9 hours ahead of Coordinated Universal Time (UTC+9). In Japan, Daylight Saving Time is not practiced, and thus JST does not change throughout the year. For the right time zone, check the JST Time Now.
AST
AST (Atlantic Standard Time) is 4 hours behind Coordinated Universal Time ( UTC-3:30), used. In sections of North America and the Caribbean. Most of the Caribbean islands remain on AST throughout the year, but Canadian provinces such as Nova Scotia and New Brunswick change to Atlantic Daylight Time (ADT, UTC-3) in summer. Check the AST Time Now.
JST to AST Chart
| JST Time | AST Time |
|---|---|
| 12:00 AM | 12:00 PM |
| 01:00 AM | 01:00 PM |
| 02:00 AM | 02:00 PM |
| 03:00 AM | 03:00 PM |
| 04:00 AM | 04:00 PM |
| 05:00 AM | 05:00 PM |
| 06:00 AM | 06:00 PM |
| 07:00 AM | 07:00 PM |
| 08:00 AM | 08:00 PM |
| 09:00 AM | 09:00 PM |
| 10:00 AM | 10:00 PM |
| 11:00 AM | 11:00 PM |
| 12:00 PM | 12:00 AM |
| 01:00 PM | 01:00 AM |
| 02:00 PM | 02:00 AM |
| 03:00 PM | 03:00 AM |
| 04:00 PM | 04:00 AM |
| 05:00 PM | 05:00 AM |
| 06:00 PM | 06:00 AM |
| 07:00 PM | 07:00 AM |
| 08:00 PM | 08:00 AM |
| 09:00 PM | 09:00 AM |
| 10:00 PM | 10:00 AM |
| 11:00 PM | 11:00 AM |