JST to United States time conversion

JST time

JSTUTC+9Not observed

Time in United States

EDTUTC-4Daylight saving time

United States is 13 hours behind JST. After the next clock change (): United States is 14 hours behind JST.

Time difference with your location

JST is 9 hours ahead of UTC. Compare with your local time →

Choose a date and time

Choose the local time in JST to convert it to United States on that date.

United States to JST time conversion

Skipped clock-change times are unavailable; a repeated time uses its first occurrence.

24-hour conversion chart · JST → United States

This table converts each hour in JST to United States on 2026-10-22.

  • Working hours
  • Outside working hours
  • Night hours
JSTUnited StatesShared working hours
00:0012:00 AM 11:0011:00 AM -1 day
01:001:00 AM 12:0012:00 PM -1 day
02:002:00 AM 13:001:00 PM -1 day
03:003:00 AM 14:002:00 PM -1 day
04:004:00 AM 15:003:00 PM -1 day
05:005:00 AM 16:004:00 PM -1 day
06:006:00 AM 17:005:00 PM -1 day
07:007:00 AM 18:006:00 PM -1 day
08:008:00 AM 19:007:00 PM -1 day
09:009:00 AM 20:008:00 PM -1 day
10:0010:00 AM 21:009:00 PM -1 day
11:0011:00 AM 22:0010:00 PM -1 day
12:0012:00 PM 23:0011:00 PM -1 day
13:001:00 PM 00:0012:00 AM
14:002:00 PM 01:001:00 AM
15:003:00 PM 02:002:00 AM
16:004:00 PM 03:003:00 AM
17:005:00 PM 04:004:00 AM
18:006:00 PM 05:005:00 AM
19:007:00 PM 06:006:00 AM
20:008:00 PM 07:007:00 AM
21:009:00 PM 08:008:00 AM
22:0010:00 PM 09:009:00 AM
23:0011:00 PM 10:0010:00 AM

Quick conversion examples

These examples use JST (UTC+9) and United States (UTC-4); choosing a date applies the local clock changes.

Conversion formula: United States = JST − 13h · JST − 14h.

JSTUnited States
6:00 AM JST= 5:00 PM United States (-1 day)
7:00 AM JST= 6:00 PM United States (-1 day)
8:00 AM JST= 7:00 PM United States (-1 day)
9:00 AM JST= 8:00 PM United States (-1 day)
10:00 AM JST= 9:00 PM United States (-1 day)
12:00 PM JST= 11:00 PM United States (-1 day)
3:00 PM JST= 2:00 AM United States
5:00 PM JST= 4:00 AM United States
6:00 PM JST= 5:00 AM United States
8:00 PM JST= 7:00 AM United States

Overlapping meeting hours

The 08:00–18:00 working days in JST and United States do not overlap on 2026-10-22.

Clock changes on both sides, 2026–2028

JST and United States have the following local clock changes in 2026–2028; all times in the table are local to that side.

YearJSTUnited States
2026 No clock changes; UTC+9 all year.

· 02:00 → 03:00
UTC-5 → UTC-4

· 02:00 → 01:00
UTC-4 → UTC-5

2027 No clock changes; UTC+9 all year.

· 02:00 → 03:00
UTC-5 → UTC-4

· 02:00 → 01:00
UTC-4 → UTC-5

2028 No clock changes; UTC+9 all year.

· 02:00 → 03:00
UTC-5 → UTC-4

· 02:00 → 01:00
UTC-4 → UTC-5

At the start of 2026, United States is 14 hours behind JST. The difference changes during the following periods.

  • From 2026-03-08 16:00 JST until 2026-11-01 15:00 JST, United States is 13 hours behind JST.
  • From 2027-03-14 16:00 JST until 2027-11-07 15:00 JST, United States is 13 hours behind JST.
  • From 2028-03-12 16:00 JST until 2028-11-05 15:00 JST, United States is 13 hours behind JST.

Frequently asked questions

What time is 9 AM JST in United States?

9:00 AM JST = 8:00 PM United States (-1 day), using UTC+9 and UTC-4. Choose a date above for the seasonal local time.

Does the time difference between JST and United States change during the year?

Yes. During 2026–2028: United States is 14 hours behind JST; United States is 13 hours behind JST. The clock-change table gives the dates for both sides.

How do I tell whether it is day or night in United States?

Read the United States clock above: this guide counts 06:00–18:00 local time as daytime and the rest as nighttime, without using sunrise and sunset.

What is the best time to call between JST and United States?

The 08:00–18:00 working days in JST and United States do not overlap.

What is the time difference between JST and United States now?

Right now, United States is 13 hours behind JST. Conversion formula: United States = JST − 13h · JST − 14h.