Sunrise and Sunset times in Acton, United States 
Acton
Massachusetts
Time zone: America/New_York, UTC -4 h.
Latitude: 42.4843, Longitude: -71.4378
23 455 people
| Date | Sunrise | Solar Noon | Sunset | Length of day |
|---|---|---|---|---|
| 2025-Jul-01, Tuesday | 05:12:33 | 12:49:44 | 20:26:55 | 15h 14m 22s |
| 2025-Jul-02, Wednesday | 05:13:06 | 12:49:55 | 20:26:45 | 15h 13m 39s |
| 2025-Jul-03, Thursday | 05:13:40 | 12:50:06 | 20:26:32 | 15h 12m 52s |
| 2025-Jul-04, Friday | 05:14:17 | 12:50:17 | 20:26:17 | 15h 12m 0s |
| 2025-Jul-05, Saturday | 05:14:54 | 12:50:27 | 20:26:01 | 15h 11m 7s |
| 2025-Jul-06, Sunday | 05:15:33 | 12:50:37 | 20:25:41 | 15h 10m 8s |
| 2025-Jul-07, Monday | 05:16:14 | 12:50:47 | 20:25:20 | 15h 9m 6s |
| 2025-Jul-08, Tuesday | 05:16:55 | 12:50:56 | 20:24:57 | 15h 8m 2s |
| 2025-Jul-09, Wednesday | 05:17:39 | 12:51:05 | 20:24:31 | 15h 6m 52s |
| 2025-Jul-10, Thursday | 05:18:23 | 12:51:13 | 20:24:04 | 15h 5m 41s |
| 2025-Jul-11, Friday | 05:19:09 | 12:51:21 | 20:23:34 | 15h 4m 25s |
| 2025-Jul-12, Saturday | 05:19:55 | 12:51:29 | 20:23:02 | 15h 3m 7s |
| 2025-Jul-13, Sunday | 05:20:43 | 12:51:36 | 20:22:28 | 15h 1m 45s |
| 2025-Jul-14, Monday | 05:21:32 | 12:51:42 | 20:21:52 | 15h 0m 20s |
| 2025-Jul-15, Tuesday | 05:22:22 | 12:51:48 | 20:21:14 | 14h 58m 52s |
| 2025-Jul-16, Wednesday | 05:23:13 | 12:51:54 | 20:20:34 | 14h 57m 21s |
| 2025-Jul-17, Thursday | 05:24:05 | 12:51:59 | 20:19:52 | 14h 55m 47s |
| 2025-Jul-18, Friday | 05:24:58 | 12:52:03 | 20:19:08 | 14h 54m 10s |
| 2025-Jul-19, Saturday | 05:25:52 | 12:52:07 | 20:18:22 | 14h 52m 30s |
| 2025-Jul-20, Sunday | 05:26:47 | 12:52:10 | 20:17:34 | 14h 50m 47s |
| 2025-Jul-21, Monday | 05:27:42 | 12:52:13 | 20:16:44 | 14h 49m 2s |
| 2025-Jul-22, Tuesday | 05:28:38 | 12:52:15 | 20:15:52 | 14h 47m 14s |
| 2025-Jul-23, Wednesday | 05:29:35 | 12:52:17 | 20:14:59 | 14h 45m 24s |
| 2025-Jul-24, Thursday | 05:30:33 | 12:52:18 | 20:14:03 | 14h 43m 30s |
| 2025-Jul-25, Friday | 05:31:31 | 12:52:18 | 20:13:06 | 14h 41m 35s |
| 2025-Jul-26, Saturday | 05:32:29 | 12:52:18 | 20:12:07 | 14h 39m 38s |
| 2025-Jul-27, Sunday | 05:33:29 | 12:52:17 | 20:11:06 | 14h 37m 37s |
| 2025-Jul-28, Monday | 05:34:28 | 12:52:16 | 20:10:04 | 14h 35m 36s |
| 2025-Jul-29, Tuesday | 05:35:29 | 12:52:14 | 20:09:00 | 14h 33m 31s |
| 2025-Jul-30, Wednesday | 05:36:29 | 12:52:11 | 20:07:54 | 14h 31m 25s |
| 2025-Jul-31, Thursday | 05:37:30 | 12:52:08 | 20:06:46 | 14h 29m 16s |
Acton on United States map:
Cities in the same time zone America/New_York
New York (New York), Miami (Florida), Philadelphia (Pennsylvania), Washington (District of Columbia), Atlanta (Georgia), Boston (Massachusetts), Tampa (Florida), Brooklyn (New York), Queens (New York), Baltimore (Maryland), Orlando (Florida), Cleveland (Ohio), Pittsburgh (Pennsylvania), Cincinnati (Ohio), Manhattan (New York), Columbus (Ohio), Virginia Beach (Virginia), Charlotte (North Carolina), Bronx (New York), Providence (Rhode Island), Jacksonville (Florida), Richmond (Virginia), Raleigh (North Carolina), Louisville (Kentucky), Bridgeport (Connecticut), Buffalo (New York), Hartford (Connecticut), Dayton (Ohio), Rochester (New York), Sarasota (Florida)
Largest Populated Areas in United States
New York (New York), Los Angeles (California), Chicago (Illinois), Miami (Florida), Dallas (Texas), Philadelphia (Pennsylvania), Houston (Texas), Washington (District of Columbia), Atlanta (Georgia), Boston (Massachusetts), Phoenix (Arizona), Seattle (Washington), San Francisco (California), Detroit (Michigan), San Diego (California), Minneapolis (Minnesota), Tampa (Florida), Denver (Colorado), Brooklyn (New York), Queens (New York), Baltimore (Maryland), Riverside (California), St. Louis (Missouri), Las Vegas (Nevada), Portland (Oregon), San Antonio (Texas), Sacramento (California), San Jose (California), Orlando (Florida), Cleveland (Ohio)
Daylight Hours FAQ: 10 Most Googled Questions Answered
1. What are daylight hours?
Daylight hours refer to the period between sunrise and sunset. This duration changes throughout the year based on season and geographic location.
2. Why are days shorter in winter and longer in summer?
Earth's 23.5° axial tilt causes uneven sunlight distribution. Your hemisphere receives less direct sunlight in winter (shorter days) and more in summer (longer days).
3. When is the longest day of the year?
Northern Hemisphere: June 20-22 (summer solstice).
Southern Hemisphere: December 21-23.
Near polar circles, the sun doesn't set for 24 hours.
4. When is the shortest day of the year?
Northern Hemisphere: December 21-22 (winter solstice).
Southern Hemisphere: June 20-21.
5. How does latitude affect daylight hours?
The closer to poles, the more extreme variations:
- Equator: ~12-hour days year-round
- Polar regions: Midnight sun/polar nights occur
6. Why do New York and Miami have different day lengths?
Miami's lower latitude means:
- Winter days are longer than NY's
- Summer days are slightly shorter
7. When are day and night equal?
During equinoxes:
- Spring: March 20-21
- Fall: September 22-23
How fast do days lengthen/shorten?
Most rapid change near equinoxes: 2-4 minutes daily.
Slowest change near solstices: <1 minute daily.
9. Where can I check daylight hours for my city?
Reliable tools:
- Timeanddate.com
- SunCalc.org
- Photographer's Ephemeris app
10. Does daylight affect health?
Yes. Reduced winter sunlight may cause:
- Seasonal Affective Disorder (SAD)
- Vitamin D deficiency
Solution: Light therapy lamps & midday walks