Sun rise, set and twilight times calculated using a simple iterative scheme and implemented as a QBASIC program, an Excel spreadsheet using VBA and as a plain spreadsheet.
Sunrise/sunset calculator – GRID
Sunrise to Sunset - Rattler Racing
Sunrise Calculator
Sunrise and Sunset Times for Any Location | CalculatorSoup
SunCycle.png
Sunrise and sunset | Nautical Science Grade 11
GitHub - caarmen/SunriseSunset: Java utility to calculate the time of sunrise and sunset for a given location.
SunriseSunset.com - Sunrise Sunset Calculator App for Microsoft Windows
Sunrise and Sunset Times
Stacked Column Chart example: Daylight hours from sunrise to sunset | Exceljet