sun .5deg.comSouth Boston, United States (Massachusetts, Suffolk County) Sunrise, Sunset, Sun position (Altitude, Azimuth), Twilight and Daylight For day: 2026-05-21.
All times are shown in South Boston local time (GMT-04:00
).
Night, Twilight, and Daylight Times in South Boston for this day: 2026-05-21
 |
Zone Type | Start | End | Length |
| Night | 00:00:00 | 03:14:54 | 3h 14m 54s | |
| Astronomical Twilight | 03:14:54 | 04:02:41 | 47m 47s | |
| Nautical Twilight | 04:02:41 | 04:44:07 | 41m 26s | |
| Civil Twilight | 04:44:07 | 05:16:54 | 32m 47s | |
| Daylight | 05:16:54 | 20:04:44 | 14h 47m 50s | |
| Civil Twilight | 20:04:44 | 20:37:31 | 32m 47s | |
| Nautical Twilight | 20:37:31 | 21:18:58 | 41m 27s | |
| Astronomical Twilight | 21:18:58 | 22:06:44 | 47m 46s | |
| Night | 22:06:44 | 23:59:59 | 1h 53m 15s |
Sunrise, Sunset and Solar noon here: South Boston, US, for day: 2026-05-21.
| Sunrise | Solar noon | Sunset | |
| Time | 05:16:54 | 12:40:49 | 20:04:44 |
| Azimuth | 61.2° | 180° | 298.8° |
| Day Length |  |
14h 47m 50s |  |
Distance Earth-Sun (Center-to-center
12:00):
151 428 507 km94 093 312 mi
0°= North, 180°=South
Solar noon
Table view of above data:
(Azimuth: 0°=North, 90°=West, 180°=South, 270°=East)
| Time | Altitude | Azimuth |
| 000 | -26.9° | 349.2° |
| 100 | -27.4° | 5° |
| 200 | -25° | 20.5° |
| 300 | -19.8° | 34.7° |
| 400 | -12.5° | 47.2° |
| 500 | -3.7° | 58.3° |
| 600 | 6.2° | 68.3° |
| 700 | 16.8° | 77.8° |
| 800 | 27.8° | 87.3° |
| 900 | 38.9° | 97.8° |
| 1000 | 49.6° | 110.5° |
| 1100 | 59.3° | 128.3° |
| 1200 | 66.2° | 155.5° |
| 1300 | 67.5° | 191.7° |
| 1400 | 62.3° | 223° |
| 1500 | 53.4° | 243.7° |
| 1600 | 42.9° | 257.9° |
| 1700 | 31.9° | 269° |
| 1800 | 20.9° | 278.8° |
| 1900 | 10.1° | 288.2° |
| 2000 | -0.1° | 298° |
| 2100 | -9.3° | 308.6° |
| 2200 | -17.2° | 320.6° |
| 2300 | -23.2° | 334.2° |
| 2400 | -26.7° | 349.2° |