Boston to Bangkok Time Difference
Bangkok is 11 hours ahead of Boston. When it's 08:57:37 AM in Boston, it's 07:57:37 PM in Bangkok.
How Many Hours Ahead Is Bangkok From Boston?
Bangkok is 11 hours ahead of Boston. So Boston is 11 hours behind Bangkok looking the other way — the same gap, described from the other end.
In practice that means a working day in Boston starts when it is already 8:00 PM in Bangkok. The gap is not fixed all year: it becomes 12 hours on Sunday, November 1, 2026, when Boston changes its clocks.
Best Time to Call Boston and Bangkok
Standard 9-to-5 hours in Boston and Bangkok never overlap, so someone has to take the call outside their working day. The most workable window is 7:00 AM to 11:00 AM in Boston, which is 6:00 PM to 10:00 PM in Bangkok.
both at work Boston only Bangkok only neither — hours shown along the strip are Boston local time.
Convert a Specific Time
Pick any date and time in Boston to see the exact equivalent in Bangkok.
Common Times Converted
Boston time on the left, Bangkok time on the right.
Boston to Bangkok: Full 24-Hour Conversion Table
Based on today, Sunday, October 11, 2026 in Boston. Shaded rows are working hours; the darker shade marks the hours when both cities are at work.
| Boston | Bangkok | Working hours |
|---|---|---|
| 12:00 AM | 11:00 AM | Bangkok only |
| 1:00 AM | 12:00 PM | Bangkok only |
| 2:00 AM | 1:00 PM | Bangkok only |
| 3:00 AM | 2:00 PM | Bangkok only |
| 4:00 AM | 3:00 PM | Bangkok only |
| 5:00 AM | 4:00 PM | Bangkok only |
| 6:00 AM | 5:00 PM | — |
| 7:00 AM | 6:00 PM | — |
| 8:00 AM | 7:00 PM | — |
| 9:00 AM | 8:00 PM | Boston only |
| 10:00 AM | 9:00 PM | Boston only |
| 11:00 AM | 10:00 PM | Boston only |
| 12:00 PM | 11:00 PM | Boston only |
| 1:00 PM | 12:00 AM next day | Boston only |
| 2:00 PM | 1:00 AM next day | Boston only |
| 3:00 PM | 2:00 AM next day | Boston only |
| 4:00 PM | 3:00 AM next day | Boston only |
| 5:00 PM | 4:00 AM next day | — |
| 6:00 PM | 5:00 AM next day | — |
| 7:00 PM | 6:00 AM next day | — |
| 8:00 PM | 7:00 AM next day | — |
| 9:00 PM | 8:00 AM next day | — |
| 10:00 PM | 9:00 AM next day | Bangkok only |
| 11:00 PM | 10:00 AM next day | Bangkok only |
Understanding the Boston – Bangkok Time Difference
Boston runs on America/New_York, currently EDT (UTC-4:00). Bangkok runs on Asia/Bangkok, currently UTC+7:00. The gap of 11 hours is simply the distance between those two offsets.
Boston observes Daylight Saving Time and Bangkok does not, so the gap between them shifts by an hour twice a year. The next shift is on Sunday, November 1, 2026, when Boston adjusts its clocks and the difference becomes 12 hours. Anything scheduled across that date needs checking again.
Full clock-change dates: Daylight Saving Time in the United States.
Boston today
Bangkok today
Frequently Asked Questions
What is the time difference between Boston and Bangkok?
Bangkok is currently 11 hours ahead of Boston. That gap becomes 12 hours on Sunday, November 1, 2026, when Boston changes its clocks.
How many hours ahead is Bangkok from Boston?
Bangkok is 11 hours ahead of Boston. Looking at it the other way, Boston is 11 hours behind Bangkok.
What time is it in Bangkok when it is 9:00 AM in Boston?
When it is 9:00 AM in Boston, it is 8:00 PM in Bangkok.
Is Bangkok ahead of or behind Boston?
Bangkok is 11 hours ahead of Boston. Bangkok reaches each point in the day first, so its working day is already finishing while Boston is still getting started.
What is the best time to call between Boston and Bangkok?
Standard business hours in Boston and Bangkok do not overlap at all, so one side has to step outside the 9-to-5. The most workable window is 7:00 AM to 11:00 AM in Boston, which is 6:00 PM to 10:00 PM in Bangkok.
Does the time difference between Boston and Bangkok change during the year?
Yes. Boston observes Daylight Saving Time and Bangkok does not, so the gap between them shifts during the year. It changes to 12 hours on Sunday, November 1, 2026.
What time zones are Boston and Bangkok in?
Boston uses the America/New_York time zone, currently EDT (UTC-4:00). Bangkok uses Asia/Bangkok, currently UTC+7:00.