Sunrise, Sunset and Weather in Boston

Boston lies at 42.36°N, 71.06°W and uses UTC-5 / UTC-4. In 2026 its longest day is Sun, Jun 21, with sunrise at 05:08, sunset at 20:25 and 15h 17m of daylight; the shortest is Mon, Dec 21, with 9h 05m. The earliest sunrise of the year is on Sun, Jun 14 (05:07) and the latest sunset on Fri, Jun 26 (20:25).

Latitude

42.36° N

Longitude

71.06° W

Time zone

UTC-5 / UTC-4

Longest day 2026

15h 17m

Shortest day 2026

9h 05m

Sunrise and sunset on the solar terms, 2026

Sunrise and sunset on the solar terms, 2027

Sunrise and sunset on the solar terms, 2028

First day of each month, 2026

Notes

Sunrise and sunset are the moments when the upper edge of the sun touches the horizon, including atmospheric refraction: the air bends the sun’s image up by about half a degree, so the sun is still geometrically below the horizon when you first see it.

The calculation assumes sea level and a flat horizon, ignoring mountains, buildings and elevation, so the times you see may differ by a few minutes. It uses the solar position formulas of the US National Oceanic and Atmospheric Administration (NOAA) and is usually accurate to about a minute.

Solar noon is when the sun crosses the local meridian and is highest in the sky. It is rarely exactly 12:00, because the city’s longitude differs from its time zone’s central meridian and because of the equation of time. In Boston solar noon falls between about 11:28 and 12:52 through the year.

Boston observes daylight saving time; the times shown already reflect whether DST applies on each date (UTC-5 / UTC-4).

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See also: 24 solar terms · ← Back to the calendar