Maybe this:
http://www.cpearson.com/excel/LatLong.aspx

HTH,
Ryan--

--
Ryan---
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"Kelvin" wrote:

Hi,
does anyone know how to calculate the LAT time ?
ie. i got a location in singapore
Longitude : East 103 deg 50 min 57sec
Latitude : North 01 deg 17 min 59 sec
e (Equation of Time) + LMT (Local Mean Time) = LAT (Local Apparent Time)
i got this formula from internet ..
thanks in advance