For Saturday the 20th of January, 2018
Timezone:America/New_York
Latitude:26.479936
Longitude:-82.174106
Location:Sanibel Island, Florida, USA

Astronomical Twilight Begins: 05:56:50
Nautical Twilight Begins: 06:24:36
Civil Twilight Begins: 06:52:45
Sunrise: 07:17:19
Sunset: 18:02:37
Civil Twilight Ends: 18:27:11
Nautical Twilight Ends: 18:55:21
Astronomical Twilight Ends: 19:23:07
Length of the Day: 10:45 hours


Wikipedia Twilight Article

Wikipedia Twilight Images

The Colors of Twilight and Sunset, Stephen F. Corfidi NOAA/NWS Storm Prediction Center