The big difference in times between Joe and mine could also be due to the location but I didn't think about DST. Although four minutes is pretty close as in Rick's report I prefer using the observing sites coordinates, which is what was used to generate the times I posted. aj SaguaroAstro@xxxxxxx wrote: > Joe > > I too use Skymap Pro and My time agree with Aj's to within 4 minutes. I'd say > the difference is I'v e input AZ -city as a location, AJ may be using a > generic location. Are you sure you have DST turned off? Go to the Observing > location button and make sure the DST box is toggled off. > > Rick