The one thing I want to know during golf season is the hours of sunlight that I have available for play. The Chronometer app available on the iTunes App Store fills this need well. The application offers a variety of virtual watches with a wonderment of complications that at first seem toylike but are really useful. The Haleakala watch gives you the sunrise and sunset times of your location along with the sun and moon azimuths which are useful for navigating the Santa Maria to Cathay. For the avid golfer, twilight on both ends of the day is enough light to play.