Groton to JST Time

Groton, Massachusetts, United States of America Time

Fri Jul, 03, 2026
2:42 AM

Groton, Massachusetts, United States of America

Groton time (EDT) is 4 hours behind Universal Time (UTC-4)

Japan Standard Time

Fri Jul, 03, 2026
3:42 PM

Japan Standard Time (JST)

JST is 9 hours ahead of Universal Time (UTC+9)

Groton to JST Time Conversion

When it is 12:00 PM in Groton, it is 1:00 AM the next day in JST.

📞There is no overlap during standard 9-to-5 business hours, so a call may need to be early or late in the day for one side.

Time difference between Groton and JST

Groton is 13 hours behind JST.

🕐 Add 13 hours to Groton time to get JST time.

Groton uses 4 hours behind Universal Time (UTC-4) and JST uses 9 hours ahead of Universal Time (UTC+9).

Groton to JST time conversion chart (24 hours)

Highlighted rows are overlapping 9-to-5 business hours – the best time to schedule a call between Groton and JST.
Groton Time JST Time
12 AM Groton Time 1 PM JST Time
1 AM Groton Time 2 PM JST Time
2 AM Groton Time 3 PM JST Time
3 AM Groton Time 4 PM JST Time
4 AM Groton Time 5 PM JST Time
5 AM Groton Time 6 PM JST Time
6 AM Groton Time 7 PM JST Time
7 AM Groton Time 8 PM JST Time
8 AM Groton Time 9 PM JST Time
9 AM Groton Time 10 PM JST Time
10 AM Groton Time 11 PM JST Time
11 AM Groton Time 12 AM JST Time
Groton Time JST Time
12 PM Groton Time 1 AM JST Time
1 PM Groton Time 2 AM JST Time
2 PM Groton Time 3 AM JST Time
3 PM Groton Time 4 AM JST Time
4 PM Groton Time 5 AM JST Time
5 PM Groton Time 6 AM JST Time
6 PM Groton Time 7 AM JST Time
7 PM Groton Time 8 AM JST Time
8 PM Groton Time 9 AM JST Time
9 PM Groton Time 10 AM JST Time
10 PM Groton Time 11 AM JST Time
11 PM Groton Time 12 PM JST Time

Groton to JST - Frequently Asked Questions

Q

What is the time difference between Groton and JST?

A

Groton is 13 hours behind JST.

Q

Is Groton ahead of or behind JST?

A

Groton is behind JST by 13 hours.

Q

When it is 9:00 AM in Groton, what time is it in JST?

A

It is 10:00 PM in JST.