Sun Times in Groton
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Frequently Asked Questions
What time is sunrise in Groton?
Sunrise in Groton on Saturday, August 15, 2026 is at 6:34 AM (America/Chicago). This time is calculated from the city's coordinates.
What time is sunset in Groton?
Sunset in Groton on Saturday, August 15, 2026 is at 8:37 PM (America/Chicago). This time is calculated from the city's coordinates.
When is golden hour in Groton?
Morning golden hour in Groton ends at 7:15 AM. Evening golden hour starts at 7:57 PM.
How long is the day in Groton?
On Saturday, August 15, 2026 in Groton there are 14 hours and 3 minutes of daylight between sunrise and sunset.
What time is the sun at its highest point in Groton?
The sun reaches its highest point (solar noon) in Groton at 1:36 PM (America/Chicago). This is when the sun crosses the meridian and shadows are at their shortest.
What time does it get dark in Groton?
In Groton, sunset is at 8:37 PM and it gets fully dark (astronomical dusk) at 10:32 PM (America/Chicago). Civil twilight ends at 9:09 PM when outdoor activities need artificial light.
How long does twilight last in Groton?
Twilight in Groton lasts approximately 115 minutes from sunset to full darkness (astronomical dusk). This includes civil twilight, nautical twilight, and astronomical twilight.
What is the earliest sunrise of the year in Groton?
The earliest sunrise in Groton in 2026 is at 5:43 AM on June 10 (America/Chicago). This occurs around the summer solstice when days are longest.
What is the latest sunset of the year in Groton?
The latest sunset in Groton in 2026 is at 9:25 PM on June 24 (America/Chicago). This occurs shortly after the summer solstice.
What time does it actually get dark after sunset in Groton?
After sunset at 8:37 PM in Groton, civil twilight ends at 9:09 PM — about 32 minutes later — when the sky becomes too dark for outdoor activities without artificial light. Full darkness (astronomical dusk) arrives at 10:32 PM (America/Chicago).
What these times mean
Solar times in Groton shift throughout the year. Each stage of the day brings distinct light that photographers, outdoor planners, and everyday users rely on.
- Dawn
- The first usable twilight before sunrise, when the horizon brightens and color gradually returns to the sky.
- Sunrise
- The moment the upper edge of the sun appears above the horizon, starting direct daylight.
- Golden Hour
- The low-angle window just after sunrise and just before sunset, producing warm, soft light favored by photographers.
- Sunset
- The moment the upper edge of the sun drops below the horizon, ending direct sunlight for the day.
- Dusk
- The fading twilight after sunset, ending with astronomical dusk when the sky becomes fully dark.
Monthly daylight in Groton
Sunrise, sunset, and total daylight in Groton on the 15th of each month for 2026. Times reflect the city's local timezone.
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 8:08 AM | 5:15 PM | 9h 07m |
| February | 7:33 AM | 5:59 PM | 10h 26m |
| March | 7:44 AM | 7:38 PM | 11h 54m |
| April | 6:46 AM | 8:18 PM | 13h 32m |
| May | 6:01 AM | 8:56 PM | 14h 55m |
| June | 5:43 AM | 9:22 PM | 15h 40m |
| July | 5:58 AM | 9:17 PM | 15h 19m |
| August | 6:33 AM | 8:39 PM | 14h 06m |
| September | 7:11 AM | 7:43 PM | 12h 32m |
| October | 7:48 AM | 6:46 PM | 10h 58m |
| November | 7:31 AM | 5:02 PM | 9h 31m |
| December | 8:05 AM | 4:49 PM | 8h 44m |
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