Sunrise/Sunset app

Design for an app that tells you the sunrise/sunset time (for hunters, photographers, etc). Design is one continuous view/gradient between sunrise and sunset.

Design inspiration from the beautifully minimal Kelvin app by @Eric Hoffman

SWIPE DOWN: change sunrise to sunset
SWIPE UP: from sunset back to sunrise
SWIPE LEFT: change location
SWIPE RIGHT: change date

Also, the sun bounces behind the horizon (rising or falling) when you swipe between sunrise/sunset (Josh Howland did some killer animation work).