TimezoneHop

JST to AST Converter

AST is 13 hours behind JST. When it is 9:00 AM in JST, it is 8:00 PM the previous day in AST.

Convert JST to AST

Live
  1. JSTJST (UTC+9)
    3:27 PMThu, Nov 5
  2. ASTAST (UTC−4), 13 hours behind
    2:27 AMThu, Nov 5
Thursday, November 5, 2026

JST to AST time table

JSTAST
12:00 AM11:00 AMprevious day
1:00 AM12:00 PMprevious day
2:00 AM1:00 PMprevious day
3:00 AM2:00 PMprevious day
4:00 AM3:00 PMprevious day
5:00 AM4:00 PMprevious day
6:00 AM5:00 PMprevious day
7:00 AM6:00 PMprevious day
8:00 AM7:00 PMprevious day
9:00 AM8:00 PMprevious day
10:00 AM9:00 PMprevious day
11:00 AM10:00 PMprevious day
12:00 PM11:00 PMprevious day
1:00 PM12:00 AM
2:00 PM1:00 AM
3:00 PM2:00 AM
4:00 PM3:00 AM
5:00 PM4:00 AM
6:00 PM5:00 AM
7:00 PM6:00 AM
8:00 PM7:00 AM
9:00 PM8:00 AM
10:00 PM9:00 AM
11:00 PM10:00 AM

Best time for a meeting

Working hours (9 AM–5 PM) do not overlap. The closest compromise is 7:00 AM in JST, which is 6:00 PM in AST.

Daylight saving changes

JST and AST are fixed UTC offsets, so the difference between them never changes.

More about these times

Convert JST to other places

Convert other places to AST