The view shown is from east looking towards west. This is a cross section of the Meridian. The values to be used should be when the sun crosses the meridian. Enter either zenith distance or declination. Corresponding dates, when the sun is at the given position, will be shown. There will be a error of few days near the solstices, suns extreme positions.
Default Latitude is of Jantar Mantar, JaipurMade by Alok Mandavgane Aryabhat