Boston Time to JST Converter
JST is 14 hours ahead of EST. 9:00 AM EST = 11:00 PM JST.
JST is 14 hours ahead of EST at the moment. To convert Boston Time to JST, add 14 hours to the Boston Time time: 9:00 AM EST = 11:00 PM JST.
Boston Time (Boston time) is used in Boston, USA. JST (Japan Time) is used in Japan.
Boston Time to JST time conversion table
Boston Time to JST on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| Boston Time | JST |
|---|---|
| 12:00 AM | 2:00 PM |
| 1:00 AM | 3:00 PM |
| 2:00 AM | 4:00 PM |
| 3:00 AM | 5:00 PM |
| 4:00 AM | 6:00 PM |
| 5:00 AM | 7:00 PM |
| 6:00 AM | 8:00 PM |
| 7:00 AM | 9:00 PM |
| Boston Time | JST |
|---|---|
| 8:00 AM | 10:00 PM |
| 9:00 AM | 11:00 PM |
| 10:00 AM | 12:00 AM+1 |
| 11:00 AM | 1:00 AM+1 |
| 12:00 PM | 2:00 AM+1 |
| 1:00 PM | 3:00 AM+1 |
| 2:00 PM | 4:00 AM+1 |
| 3:00 PM | 5:00 AM+1 |
| Boston Time | JST |
|---|---|
| 4:00 PM | 6:00 AM+1 |
| 5:00 PM | 7:00 AM+1 |
| 6:00 PM | 8:00 AM+1 |
| 7:00 PM | 9:00 AM+1 |
| 8:00 PM | 10:00 AM+1 |
| 9:00 PM | 11:00 AM+1 |
| 10:00 PM | 12:00 PM+1 |
| 11:00 PM | 1:00 PM+1 |
Conversion table from Boston Time to JST 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 JST, −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 Boston Time to JST
Add 14 hours to the Boston Time time to get JST.
Example: 9:00 AM EST = 11:00 PM JST.
Across midnight: 10:00 PM EST = 12:00 PM JST (next day). The date changes, so always check the day as well as the hour.
Time difference between Boston Time and JST
The time difference between Boston Time and JST 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:
- 31 Dec 2025 – 7 Mar 2026: JST is 14 hours ahead of Boston Time.
- 8 Mar 2026 – 31 Oct 2026: JST is 13 hours ahead of Boston Time.
- 1 Nov 2026 – 30 Dec 2026: JST is 14 hours ahead of Boston Time.
Boston Time and JST during daylight saving time
- 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).
- JST does not observe daylight saving time; it stays on UTC+9 all year.
Best time for a meeting between Boston Time and JST
Boston Time and JST have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM EST, which is 9:00 PM JST.
Boston Time to JST FAQ
What is the time difference between Boston Time and JST?
Right now JST is 14 hours ahead of EST. The gap changes 3 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM Boston Time in JST?
9:00 AM EST is 11:00 PM JST.
What is 12 PM (noon) Boston Time in JST?
12:00 PM EST is 2:00 AM JST (next day).
Is JST ahead of or behind Boston Time?
JST is 14 hours ahead of EST, so it is later in JST than in Boston 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.
Does JST change for daylight saving time?
No. JST stays on the same offset all year, so conversions never shift for daylight saving time.
What is the best time for a meeting between Boston Time and JST?
Boston Time and JST have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM EST, which is 9:00 PM JST.
Related conversions
Convert JST to Boston Time
Convert Boston Time to other time zones
Convert other time zones to JST
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.