Current time in Boston, United States
The current local time in Boston is shown below. Boston observes EST in winter and EDT during daylight saving time.
Daylight saving time
Sunrise & sunset today
Timezone facts
Boston in context
Boston wraps around a deep harbour at the western edge of Massachusetts Bay, the largest city in New England with around 695,000 residents in the municipality and 4.9 million in the Greater Boston metropolitan area. The compact downtown core sits on a peninsula partly built from filled tidal flats, with the Charles River separating it from Cambridge and the academic campuses of Harvard and MIT on the northern bank.
Timezone history of Boston
Boston anchors the northern end of the US Eastern timezone, three hours ahead of California and roughly midway between London and the West Coast for cross-Atlantic and transcontinental scheduling. Massachusetts moves in step with the federal DST rules, with the seasonal shift particularly pronounced this far north: winter sunset arrives before 16:30 in December, while late-June twilight stretches past 21:00.
Working hours in Boston
Boston's working day is shaped by its concentration of universities and research hospitals. Office hours typically run 09:00 to 17:30, but the academic calendar pulls staffing and meeting cadence around the September-to-May term cycle, with a significant May commencement period and reduced activity in late June through August. Biotech firms along Cambridge's Kendall Square keep flexible hours that often extend into the evening.