Geodesy
The Wolfram Language provides state-of-the-art high-precision geodesy computation, supporting all standard datums and projections.
DMS etc. Conversions
FromDMS — convert from degrees, minutes, and seconds to decimal degrees
DMSString, DMSList — convert from decimal degrees to degrees-minutes-seconds form
Latitude, Longitude, LatitudeLongitude — extract latitude, longitude
Degree (°) — conversion factor from radians to degrees (entered as 
deg
)
Geodetic Points & Coordinate Systems
GeoPosition — geodetic position specified by latitude and longitude
GeoPositionXYZ ▪ GeoPositionENU
GeoGridPosition — projected position in a cartographic grid
GeoAntipode — antipode of a geodetic location
RandomGeoPosition — generate pseudorandom geo positions in a region
Geodetic Vectors & Vector Frames
GeoVector — geodetic vector specified by modulus and direction
GeoGridVector — vector specified by components in the projected coordinates frame
Geodetic Paths & Measures
GeoDistance — distance between geodetic positions
GeoDirection — azimuthal direction between geodetic positions
GeoDestination — position at a given distance and direction from a point
GeoDisplacement — symbolic representation of a geodetic direction and distance
GeoLength — length of a geodetic path
GeoArea — area of a geodetic region
GeoDistanceList — successive pairwise distances between a list of geodetic positions
Geodetic Projections
GeodesyData — data on reference ellipsoids and geodetic datums
GeoProjectionData — data on cartographic projections
Projection Scale & Distortion
GeoGridUnitDistance — local geo distance corresponding to a unit of map distance
GeoGridUnitArea — local geo area corresponding to a unit of map area
GeoGridDirectionDifference — local angular change under projection
GeoElevationData — elevation data for the Earth and other planetary bodies
GeoGraphics — create detailed relief, border, street, etc. maps
GeoImage — satellite imagery
GeoNearest — find nearest geographic features
GeoWithinQ ▪ GeoIdentify ▪ GeoEntities
GeoBoundingBox — geo bounding box of a geographic object
GeoBounds ▪ GeoBoundsRegion ▪ GeoDisk ▪ GeoVisibleRegion
City, Country — positions of cities, countries
SunPosition ▪ MoonPosition ▪ Sunrise ▪ Sunset ▪ MoonPhase
Current Location Information
Here — deduced current geo location
$GeoLocation — settable current geodetic location
FindGeoLocation — try to find the current location using GPS, geoIP, etc.
$GeoLocationCountry ▪ $GeoLocationCity ▪ $TimeZone
Time Computations »
LocalTime — local time at any location on the Earth
LocalTimeZone — local time zone for any location
Travel-Based Computations »
TravelDistance — distance based on travel by car, walking, etc.
TravelTime — time based on travel by car, walking, etc.
TravelDistanceList — successive pairwise travel distances between a list of locations