Calculates when dawn, sunrise, sunset and dusk occurs, depending on location and time of year. A unique feature in this app is the graph view - this can e.g. be very useful for educational purposes. Features: - A calendar view, showing the hour and minute when each event occurs, day by day - A graph view, showing how each event changes over the year - Shows local times, using current location, timezone and day by default - Select another day by sliding the view left or right - Select another lo