Sunrise ,sunset and sun transit calculator

Altitude limit	Centre of sun touches a mathematical horizon Sun's upper limb touches a mathematical horizon Sun's centre touches the horizon,atmospheric refraction accounted for. Sun's upper limb touches the horizon,atmospheric refraction accounted for.
User defined altitude limit	deg
Site Position
Latitude	Degminsec
Longitude	Degminsec
Day
Month
Year
Calculates local time (computer time)

Sun transit will be the time when sun is in south in nothern hemisphere and north for southern hemisphere