Understanding sunrise sunset
Sunrise and sunset estimation relates a date and location to solar timing.
Use the correct time zone and treat terrain and atmospheric effects as additional sources of variation.
A practical workflow
- Choose the required source files, if any. Files are handled as stated in the workspace privacy label.
- Set the available controls and apply the operation.
- Compare the actual output, check its dimensions and download the generated file.
Decisions and limitations
- Date (YYYY-MM-DD)
- Latitude (north positive)
- Longitude (east positive)
- UTC offset (hours)
Flat horizon and 0.833 degree atmospheric refraction assumption. Terrain, weather and automatic daylight saving rules are not included. Results are approximate.
Questions about this task
Where do I use the current tool?
Estimate sunrise and sunset with the NOAA fractional-year equations and explicit coordinates and UTC offset.
What should I check for sunrise sunset?
Use the correct time zone and treat terrain and atmospheric effects as additional sources of variation.
Which settings and formats are confirmed?
JSON. Flat horizon and 0.833 degree atmospheric refraction assumption. Terrain, weather and automatic daylight saving rules are not included. Results are approximate.