Boston Time to GMT Converter
GMT is 5 hours ahead of EST. 9:00 AM EST = 2:00 PM GMT.
GMT is 5 hours ahead of EST at the moment. To convert Boston Time to GMT, add 5 hours to the Boston Time time: 9:00 AM EST = 2:00 PM GMT.
Boston Time (Boston time) is used in Boston, USA. GMT (GMT) is used in Same offset as UTC. The UK and Ireland use GMT in winter; Iceland, Ghana and Senegal all year.
The UK is on GMT only in winter; in summer it uses BST (UTC+1).
Boston Time to GMT time conversion table
Boston Time to GMT on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| Boston Time | GMT | Day |
|---|---|---|
| 12:00 AM EST | 5:00 AM GMT | night |
| 1:00 AM EST | 6:00 AM GMT | — |
| 2:00 AM EST | 7:00 AM GMT | — |
| 3:00 AM EST | 8:00 AM GMT | — |
| 4:00 AM EST | 9:00 AM GMT | — |
| 5:00 AM EST | 10:00 AM GMT | — |
| 6:00 AM EST | 11:00 AM GMT | — |
| 7:00 AM EST | 12:00 PM GMT | — |
| 8:00 AM EST | 1:00 PM GMT | — |
| 9:00 AM EST | 2:00 PM GMT | work hours |
| 10:00 AM EST | 3:00 PM GMT | work hours |
| 11:00 AM EST | 4:00 PM GMT | work hours |
| 12:00 PM EST | 5:00 PM GMT | — |
| 1:00 PM EST | 6:00 PM GMT | — |
| 2:00 PM EST | 7:00 PM GMT | — |
| 3:00 PM EST | 8:00 PM GMT | — |
| 4:00 PM EST | 9:00 PM GMT | — |
| 5:00 PM EST | 10:00 PM GMT | night |
| 6:00 PM EST | 11:00 PM GMT | night |
| 7:00 PM EST | 12:00 AM GMT | next day |
| 8:00 PM EST | 1:00 AM GMT | next day |
| 9:00 PM EST | 2:00 AM GMT | next day |
| 10:00 PM EST | 3:00 AM GMT | next day |
| 11:00 PM EST | 4:00 AM GMT | next day |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert Boston Time to GMT
Add 5 hours to the Boston Time time to get GMT.
Example: 9:00 AM EST = 2:00 PM GMT.
Across midnight: 10:00 PM EST = 3:00 AM GMT (next day). The date changes, so always check the day as well as the hour.
Time difference between Boston Time and GMT
The time difference between Boston Time and GMT 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: GMT is 5 hours ahead of Boston Time.
- 8 Mar 2026 – 31 Oct 2026: GMT is 4 hours ahead of Boston Time.
- 1 Nov 2026 – 30 Dec 2026: GMT is 5 hours ahead of Boston Time.
Boston Time and GMT 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).
- GMT does not observe daylight saving time; it stays on UTC+0 all year.
Best time for a meeting between Boston Time and GMT
Boston Time and GMT share 3 hours of the 9 AM–5 PM working day. Any time between 9:00 AM and 12:00 PM EST lands between 2:00 PM and 5:00 PM GMT, inside working hours for both.
Boston Time to GMT FAQ
What is the time difference between Boston Time and GMT?
Right now GMT is 5 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 GMT?
9:00 AM EST is 2:00 PM GMT.
What is 12 PM (noon) Boston Time in GMT?
12:00 PM EST is 5:00 PM GMT.
Is GMT ahead of or behind Boston Time?
GMT is 5 hours ahead of EST, so it is later in GMT 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 GMT change for daylight saving time?
No. GMT 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 GMT?
Boston Time and GMT share 3 hours of the 9 AM–5 PM working day. Any time between 9:00 AM and 12:00 PM EST lands between 2:00 PM and 5:00 PM GMT, inside working hours for both.
Related conversions
Convert GMT to Boston Time
Convert Boston Time to other time zones
Convert other time zones to GMT
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.