Highlighted rows fall within 09:00–18:00 in both places: 3 shared working hours.
Clock changes in Boston and Rome
Boston
Eastern Daylight Time (EDT)
Next clock change Sun 1 Nov 2026 (UTC−4 → UTC−5)
Rome
Central European Summer Time (CEST)
Next clock change Sun 25 Oct 2026 (UTC+2 → UTC+1)
Time difference between Boston and Rome today
At this moment Rome is 6 hours ahead of Boston. When it is 09:00 in Boston, it is 15:00 in Rome. Boston is on Eastern Daylight Time (EDT); Rome is on Central European Summer Time (CEST).
When the Boston to Rome time difference changes
For most of the year Rome is 6 hours ahead of Boston. From 25 October to 31 October 2026, Rome is 5 hours ahead of Boston instead, because the two places change their clocks on different dates. Meetings booked by the usual gap land an hour off in those weeks.
Dates
Rome vs Boston
Length
29 March 2026 to 24 October 2026
6 hours ahead
210 days
25 October 2026 to 31 October 2026
5 hours ahead
7 days
1 November 2026 to 31 December 2026
6 hours ahead
61 days
1 January 2027 to 13 March 2027
6 hours ahead
72 days
14 March 2027 to 27 March 2027
5 hours ahead
14 days
28 March 2027 to 30 October 2027
6 hours ahead
217 days
31 October 2027 to 6 November 2027
5 hours ahead
7 days
7 November 2027 to 31 December 2027
6 hours ahead
55 days
Calling hours for Boston and Rome
When Rome is 6 hours ahead of Boston: 2 shared office hours, 09:00 to 11:00 in Boston (15:00 to 17:00 in Rome).
When Rome is 5 hours ahead of Boston: 3 shared office hours, 09:00 to 12:00 in Boston (14:00 to 17:00 in Rome).
Frequently asked questions about Boston and Rome time
What time is it in Rome when it is 9:00 AM in Boston?
15:00 today; Rome is 6 hours ahead of Boston.
Does the time difference between Boston and Rome change?
Yes. It is usually 6 hours ahead, but changes when one side moves its clocks: 5 hours ahead from 25 October to 31 October 2026; 5 hours ahead from 14 March to 27 March 2027.