A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Greg Rudzinski
Date: 2015 Oct 9, 20:57 -0700
I get 11:51 for meridian passage of the Sun on 9/27/2015. This is for standard time. Daylight savings or summer time will be +1 hour 12:51. Then you will have to figure arc to time for your longitude. 1° west of prime meridian is 4 minutes of time later. 1° east is 4 minutes of time sooner. For example if you were in Chicago then the meridian passage would be about 8 minutes sooner plus 1 hour for daylight savings 12:43. If LAN is being observed with a sextant then there is around 4 minutes either side of meridian passage to mark the observation.
From: Steve E. Bryant
Date: 2015 Oct 9, 21:03 -0500