Chicken Coop Daylight and Light Timer Planner
Pricing
$3.00 / 1,000 results
Chicken Coop Daylight and Light Timer Planner
Daily sunrise, sunset and day length for your coop, plus exact light timer on and off times to keep hens at 14 to 16 hours of light, for a day or a full year.
Pricing
$3.00 / 1,000 results
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Standard Work Co.
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2 days ago
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Informational only. Not for navigation, safety, emergency, financial, medical, or legal decisions. Check the official source before you rely on it.
Enter your coop's location and get, for every day: sunrise, sunset, day length, how it changed since yesterday, how much light to add to reach 14 to 16 hours, and the exact timer on and off times. Run 366 days for a full-year timer plan.
What you get (one row per day)
Date, sunrise and sunset (ISO 8601 with offset and plain local time), civil dawn and dusk, day length in minutes and h:mm, change vs the day before, target hours, whether natural light is below target, minutes of light to add, and lights on and off times for your chosen mode (before sunrise, after sunset, or split). Self-check fields flag polar days and very short days where lights must start the night before.
How it works
Sun times are computed from the JPL DE421 ephemeris with the Skyfield library (sunrise and sunset use the sun's upper edge with standard refraction, like published almanacs). No outside data feed, so it never goes stale. Light guidance follows extension advice: hens need about 14 hours of light to lay and should get no more than 16; add light before sunrise so they roost at natural dusk; if you add light after sunset, dim it over 30 to 45 minutes.
How to use (no code)
- Type your location name, latitude and longitude. 2. Pick target hours and when to add light. 3. Click Start (about 5 seconds).
Disclaimer
Informational only. Not for navigation, safety, emergency, financial, medical, or legal decisions. Check the official source before you rely on it. This is an independent tool by Standard Work Co. It is not affiliated with, endorsed by, or sponsored by any government agency or university named here. Names are used only to say where methods and guidance come from. Provided "as is" with no warranty of any kind, including accuracy, completeness, or timeliness. Liability is limited as stated in the Apify Standard Actor Contract for this tool. Not veterinary advice. Flock health, breed, age and molt affect laying; ask your vet or extension office about your flock.
Credits
Sun math: Skyfield (rhodesmill.org/skyfield) with the JPL DE421 ephemeris. Light guidance: Penn State Extension ("What Do I Do with All These Eggs?") and University of Arizona Cooperative Extension ("Lighting Schedules for Arizona Backyard Laying Flocks"). Checked against the U.S. Naval Observatory sun data service.
