Boston, United States

Boston follows Eastern Standard Time (EST) at UTC−5 and EDT at UTC−4. It runs on the same clock as New York, Philadelphia, and Washington DC.

Morning rounds at Boston’s hospitals coincide with afternoon consultations in London (5 hours ahead) and late evening in Mumbai (10.5 hours ahead). The city’s academic and medical institutions maintain research partnerships spanning every continent.

Between Harvard, MIT, and a thriving biotech corridor, Boston generates international collaboration that depends on bridging the Atlantic and Pacific time gaps reliably.