JST to AST Time Converter

When it's 12:00 PM JST, it's 11:00 PM AST 13 hours behind

Convert Time

JST (Japan Standard Time)
--:--:--
AST (Atlantic Standard Time)
--:--:--
= -- AST
Time in JSTTime in AST
12:00 AM11:00 AM (-1 day)
1:00 AM12:00 PM (-1 day)
2:00 AM1:00 PM (-1 day)
3:00 AM2:00 PM (-1 day)
4:00 AM3:00 PM (-1 day)
5:00 AM4:00 PM (-1 day)
6:00 AM5:00 PM (-1 day)
7:00 AM6:00 PM (-1 day)
8:00 AM7:00 PM (-1 day)
9:00 AM8:00 PM (-1 day)
10:00 AM9:00 PM (-1 day)
11:00 AM10:00 PM (-1 day)
12:00 PM11:00 PM (-1 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

Daylight Saving Time (DST) may affect this conversion. JST does not observe DST. AST does not observe DST.

Major Cities in JST (Japan Standard Time)

Major Cities in AST (Atlantic Standard Time)

  • Halifax
  • Dartmouth
  • Lower Sackville
  • Charlottetown
  • Downtown Halifax
What is the time difference between JST and AST?

AST is 13 hours behind compared to JST. When it's 12:00 PM (noon) in JST, it's 11:00 PM in AST.

Does Daylight Saving Time (DST) affect JST to AST conversion?

JST does not observe DST. AST does not observe DST. During DST transitions, the time difference may change by one hour.

What major cities use JST (Japan Standard Time)?

Major cities in the JST timezone include Tokyo, Yokohama, Osaka, Nagoya, Sapporo.

What is the best time to call from JST to AST?

The best time to call from JST to AST is between 9:00 AM and 5:00 PM JST, which is 8:00 PM to 4:00 AM AST. This ensures both parties are available during normal business hours (9 AM - 5 PM).