JST to Boston Time Converter
EST is 14 hours behind JST. 9:00 AM JST = 7:00 PM EST (previous day).
EST is 14 hours behind JST at the moment. To convert JST to Boston Time, subtract 14 hours from the JST time: 9:00 AM JST = 7:00 PM EST (previous day).
JST (Japan Time) is used in Japan. Boston Time (Boston time) is used in Boston, USA.
JST to Boston Time time conversion table
JST to Boston Time on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| JST | Boston Time |
|---|---|
| 12:00 AM | 10:00 AM−1 |
| 1:00 AM | 11:00 AM−1 |
| 2:00 AM | 12:00 PM−1 |
| 3:00 AM | 1:00 PM−1 |
| 4:00 AM | 2:00 PM−1 |
| 5:00 AM | 3:00 PM−1 |
| 6:00 AM | 4:00 PM−1 |
| 7:00 AM | 5:00 PM−1 |
| JST | Boston Time |
|---|---|
| 8:00 AM | 6:00 PM−1 |
| 9:00 AM | 7:00 PM−1 |
| 10:00 AM | 8:00 PM−1 |
| 11:00 AM | 9:00 PM−1 |
| 12:00 PM | 10:00 PM−1 |
| 1:00 PM | 11:00 PM−1 |
| 2:00 PM | 12:00 AM |
| 3:00 PM | 1:00 AM |
| JST | Boston Time |
|---|---|
| 4:00 PM | 2:00 AM |
| 5:00 PM | 3:00 AM |
| 6:00 PM | 4:00 AM |
| 7:00 PM | 5:00 AM |
| 8:00 PM | 6:00 AM |
| 9:00 PM | 7:00 AM |
| 10:00 PM | 8:00 AM |
| 11:00 PM | 9:00 AM |
Conversion table from JST to Boston Time for 7 Nov 2026. A tick marks hours that fall between 9 AM and 5 PM in both places. +1 means the next day in Boston Time, −1 the previous day.
- ✓ marks 9 AM–5 PM in both places
- Greyed times are night in the destination (10 PM–6 AM)
How to convert JST to Boston Time
Subtract 14 hours from the JST time to get Boston Time.
Example: 9:00 AM JST = 7:00 PM EST (previous day).
Across midnight: 1:00 AM JST = 11:00 AM EST (previous day). The date changes, so always check the day as well as the hour.
Time difference between JST and Boston Time
The time difference between JST and Boston Time is not the same all year, because the two sides change for daylight saving time on different dates. In 2026 it works out like this:
- 1 Jan 2026 – 7 Mar 2026: Boston Time is 14 hours behind of JST.
- 8 Mar 2026 – 31 Oct 2026: Boston Time is 13 hours behind of JST.
- 1 Nov 2026 – 31 Dec 2026: Boston Time is 14 hours behind of JST.
JST and Boston Time during daylight saving time
- JST does not observe daylight saving time; it stays on UTC+9 all year.
- Boston Time next changes on 14 Mar 2027: clocks go forward one hour at 01:59 local time, from EST (UTC−5) to EDT (UTC−4).
Best time for a meeting between JST and Boston Time
JST and Boston Time have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM JST, which is 5:00 PM EST.
JST to Boston Time FAQ
What is the time difference between JST and Boston Time?
Right now EST is 14 hours behind JST. The gap changes 3 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM JST in Boston Time?
9:00 AM JST is 7:00 PM EST (previous day).
What is 12 PM (noon) JST in Boston Time?
12:00 PM JST is 10:00 PM EST (previous day).
Is Boston Time ahead of or behind JST?
EST is 14 hours behind JST, so it is earlier in Boston Time than in JST.
Does JST change for daylight saving time?
No. JST stays on the same offset all year, so conversions never shift for daylight saving time.
Does Boston Time change for daylight saving time?
Yes. Boston Time next changes on 14 Mar 2027, when clocks go forward one hour from EST to EDT.
What is the best time for a meeting between JST and Boston Time?
JST and Boston Time have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM JST, which is 5:00 PM EST.
Related conversions
Convert Boston Time to JST
Convert JST to other time zones
Convert other time zones to Boston Time
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.