July 30, 2026 · Boston, USA
667,137 people
Sunset in Boston today is at 20:07. Day length is 14h 32m. See below for sunrise, solar noon, dawn and dusk — all times calculated astronomically for Boston's coordinates and updated daily.
Boston lies at 42°N. In Boston, day length ranges from 9h 4m in winter to 15h 17m in summer — a swing of about 6h 13m.
Sunset shifts later through spring and earlier through autumn — changing fastest near the equinoxes and slowest near the summer and winter solstices. See the year chart to visualise how sunset times shift month by month for Boston.
The longest day in Boston is around 15h 17m (around June 21). The shortest is around 9h 4m (around December 21). Days are currently getting shorter — losing about 2 minutes per day.
| Month | Sunset | Sunrise | Day length |
|---|---|---|---|
| January | 16:36 | 07:12 | 9h 24m |
| February | 17:15 | 06:43 | 10h 32m |
| March | 18:50 | 06:59 | 11h 51m |
| April | 19:25 | 06:06 | 13h 19m |
| May | 19:58 | 05:25 | 14h 33m |
| June | 20:23 | 05:08 | 15h 15m |
| July | 20:21 | 05:20 | 15h 0m |
| August | 19:49 | 05:51 | 13h 58m |
| September | 18:58 | 06:24 | 12h 34m |
| October | 18:05 | 06:56 | 11h 9m |
| November | 16:25 | 06:35 | 9h 50m |
| December | 16:13 | 07:07 | 9h 6m |