[iPhone God App] It was found using the Sunrise actually

Sunrise is a simple utility to calculate sunrise, solar noon, and sunset times, as well as the phase of the moon. By default, it shows the information for the current day, but Sunrise can calculate any day in the past or future.

Sunrise uses iPhone and iPod touch's ability to locate itself to determine the latitude and longitude for its calculations, so you don't have to pick a city or location -- it's automatic.

In addition to using the current location, Sunrise has a self-contained list of locations from around the world for displaying times for other locations, or for iPod touch users who cannot use location services.

When using locations from the database, Sunrise can operate without a WiFi, cellular or GPS signal.