# Sunrise Sunset Times Calculator

> Estimate sunrise, sunset, solar noon, and day length from date, latitude, longitude, and UTC offset.

Page: https://askcalculators.com/calculator/sunrise-sunset-times-calculator/
Definition: https://askcalculators.com/calculator/sunrise-sunset-times-calculator/definition.json
JSON Schema: https://askcalculators.com/calculator/sunrise-sunset-times-calculator/schema.json
Version: 1.0.0
Maintained by: AskCalculators (software project; not a credentialed reviewer)
Qualified review: pending. Automated checks do not establish professional approval.
Page status: Live
Review status: Pending

## Use
Open the calculator page and enter values. Query-string parameters can restore and bookmark a calculation.
Example: https://askcalculators.com/calculator/sunrise-sunset-times-calculator/?date=2026-09-01&latitude=42.3601&longitude=-71.0589&utcOffset=-4

## Inputs
- date: Date; type=date; required; default=2026-09-01
- latitude: Latitude (degrees); type=number; required; default=42.3601; min=-90; max=90
- longitude: Longitude (degrees; east positive); type=number; required; default=-71.0589; min=-180; max=180
- utcOffset: UTC offset (hours); type=number; required; default=-4; min=-14; max=14

## Outputs
- sunrise: Sunrise; format=text; primary
- sunset: Sunset; format=text
- solarNoon: Solar noon; format=text
- dayLength: Day length; format=text
- status: Solar status; format=text

## Formula
sunrise and sunset use the NOAA solar-position approximation with zenith 90.833°

## Rules
- Empty optional inputs are undefined, not zero.
- Hidden conditional inputs are ignored.
- Do not invent missing required inputs.

Notice: Sunrise and sunset are estimates based on a standard solar model. Verify the UTC offset and daylight-saving status for the location.