Sport
How many days until Boston Marathon 2021?
Tuesday, April 20, 2021 · US Eastern
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1,935 days since
276 weeks 3 days
46,449 hours
Boston Marathon 2021 countdown — see exactly how long until Boston Marathon in 2021, shown live in US Eastern (ET) time.
Boston Marathon in other years
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All times shown in US Eastern (America/New_York).