TOOL) β Online Photoperiod Calculator: Computation of Sunrise, Sunset and Twilight Times (fail-safe) | J. Lammi β π Glossarissimo!
![Amazing Maps en Twitter: "Sunset on the summer solstice in Europe Source: https://t.co/1TF0x2YIpL https://t.co/5z0fxcyRvL" / Twitter Amazing Maps en Twitter: "Sunset on the summer solstice in Europe Source: https://t.co/1TF0x2YIpL https://t.co/5z0fxcyRvL" / Twitter](https://pbs.twimg.com/media/DC2ancMXkAE65kx.jpg)
Amazing Maps en Twitter: "Sunset on the summer solstice in Europe Source: https://t.co/1TF0x2YIpL https://t.co/5z0fxcyRvL" / Twitter
![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. 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.](http://www.stargazing.net/kepler/sunsheet.gif)
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.
![SunCalc - sunrise, sunset, shadow length, solar eclipse, sun position, sun phase, sun height, sun calculator, sun movement, map, sunlight phases, elevation, Photovoltaic system, Photovoltaic SunCalc - sunrise, sunset, shadow length, solar eclipse, sun position, sun phase, sun height, sun calculator, sun movement, map, sunlight phases, elevation, Photovoltaic system, Photovoltaic](https://www.suncalc.org/img/suncalc.png)