Latitude:   41° 57' 51" N
   Longitude: 112° 42' 31" W
   Time Zone: (GMT-07:00) Mountain Time
   Daylight Savings Time: Automatic

           ------Twilight-----                   ------Twilight----- Daylight
   Date    Astro  Naut   Civil Sunrise  Sunset   Civil  Naut   Astro  Hours
  --------------------------------------------------------------------------
 08/11/09  4:46a  5:27a  6:04a   6:35a   8:36p   9:07p  9:44p 10:24p  14:01